Relevant bibliographies by topics / Polymerní sorbenty

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Academic literature on the topic 'Polymerní sorbenty'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Polymerní sorbenty"

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Kakhramanov, Nadzgaf T., Junis N. Gahramanly, Rena V. Kurbanova, and Reyhan S. Gadzhiyeva. "STUDY OF SORPTION PROCESS OF OIL AND OIL PRODUCTS WITH FOAM POLYMER SORBENTS BASED ON HIGH-IMPACT POLYSTYRENE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 6 (July 19, 2017): 83. http://dx.doi.org/10.6060/tcct.2017606.5583.

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Research results of influence of volume mass of crosslinked and foamed sorbents on the basis of secondary high-impact polystyrene with bitumen and zinc stearate upon their sorption capacity are represented. The mechano-chemical synthesis of foamed polymeric sorbents was carried out on the extruder with a three zone material cylinder. Azodicarbonamide was used as foaming agent and dicumyl peroxide was used as crosslinking agent. Foam polymer sorbents have a high buoyancy and hydrophobicity. This circumstance contributes to increasing the selectivity of sorption process of oil and oil products from water surface. The sorption capacity was determined by gravimetric method according to difference between sorbent weights before and after sorption. It was shown that petroleum are better sorbed on foamed polymeric sorbents with low volume weight and greater diameter of closed-celled structures. In the same time the diesel fuel sorbed well on sorbents with relatively high volume weight and accordingly lesser diameter of pores and cells. Petroleum oils are most effectively sorbed on foamed polymeric sorbents which volume weight and cells diameter are interim in comparison with sorbents for sorption of petroleum and diesel fuel. It was determined that rate of sorption processes increases with rising of temperature of aqueous medium independently on pores and cells diameter. In this case changing in sorption capacity occurs according to certain regularity depending on sorbate type, volume weight of sorbent and medium temperature. It was shown that obtained sorbents are characterized by capability to multiple regeneration at keeping of high buoyancy, hydrophobicity and sorption capacity on petroleum and oil products. Forcitation:Kakhramanov N.T., Gahramanly J.N., Kurbanova R.V., Gadzhiyeva R.Sh. Study of sorption process of oil and oil products with foam polymer sorbents based on high-impact polystyrene. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 6. P. 83-88.
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Badora, Aleksandra. "Polymeric Forms of Al13and Silicon Compounds as Unconventional Binding Agents for some Toxic Metals in Soils." Mineralogia 47, no. 1-4 (December 1, 2016): 29–37. http://dx.doi.org/10.1515/mipo-2017-0006.

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Abstract Own studies and literature data allowed for the evaluation of sorbents in view of the general verification criteria, which are necessary for any sorbent to be applied with no harm to the environment. Polymeric forms of Al13and Si compounds are examples of mineral sorbents that influence metals' toxicity in the environment.
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Kakhramanov, Najaf T., Nushaba B. Arzumanova, Junis N. Gahramanly, and Reyhan S. Gadjieva. "SORPTION OF HEAVY METALS BY MULTICOMPONENT FOAM POLYMER SORBENTS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 5 (May 21, 2019): 110–17. http://dx.doi.org/10.6060/ivkkt.20196205.5769.

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The article is dedicated to the investigation of the sorption of heavy metals from water bodies by foam polymer sorbents obtained on the basis of multicomponent polymer mixtures. The need for such studies was dictated by the fact that the more diverse the content of functional or polar groups became in the composition of the foam polymer sorbent, the greater was the probability of increasing the efficiency of sorption of heavy metals. Biocomponent polymer mixtures based on polyamide + polyurethane and three-component mixtures polyamide + polyurethane + acrylonitrile-butadiene-styrene copolymer were used as polymer matrix of the foam polymer sorbents at various ratios. Depending on the chemical nature and the ratio of the initial components in the macromolecules of polyurethane, polyamide and acrylonitrile-butadiene-styrene copolymer, in addition to urethane groups, functional groups such as ether–, ester, amide, urea, and also aliphatic and nitrile groups are also present. The investigation results of the kinetic regularities of heavy metals sorption under polymer components different ratios and ambient temperature are presented. It is established that the foam polymer sorbent consists of pores and cells with a membrane structure, which allows using it for effective sorption of polar and nonpolar compounds. The concentration of sorbed heavy metals was determined by UV-spectroscopic analysis. It is shown that the presence of a system of pores and cells allows the sorbate to diffuse into its more deeply located regions, as a result of which sorption occurs throughout the volume of the sorbent. Essentially, the foam polymer sorbents sorb the molecules by dissolving them on the surface of their membranes. A large variety of adsorption centers on the surface and in the bulk of the foam polymer causes a whole complex of sorbent-sorbate interactions, among which the Van der Waals interactions, dispersion interactions, electrostatic interactions and hydrogen bonds are the main ones.
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Vaisman, Ya I., I. S. Glushankova, L. V. Rudakova, A. A. Surkov, and A. S. Atanova. "Criteria for the Selection of Synthetic Polymeric Waste as a Raw Material for Producing Carbon Sorbents with Predetermined Properties." Ecology and Industry of Russia 24, no. 10 (October 14, 2020): 13–19. http://dx.doi.org/10.18412/1816-0395-2020-10-13-19.

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The results of studies on the thermal processing of synthetic multi-tonnage polymeric waste (polypropylene, polycarbonate, textolite, PET, organoplastics and tire rubber) with the production of carbon sorbents for technological and environmental purposes are presented. The influence of the nature of the activating agent and the conditions of the process with the production of sorbents with predetermined properties was studied. Analysis of the research results allowed us to establish that the main factors affecting the yield of carbonizate and the formation of a porous structure of carbon sorbents from synthetic polymer waste are the degree of aromaticity and the location of benzene rings in the polymer structure, the proportion of oxygen in the precursor. The criteria for selecting synthetic polymer wastes as raw materials for obtaining carbon sorbents with predetermined properties are established. The results of the research can be used in the development of technologies for obtaining carbon sorbents with predetermined properties from waste synthetic polymers and the selection of technological parameters for processes.
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Chalker, Justin M., Maximilian Mann, Max J. H. Worthington, and Louisa J. Esdaile. "Polymers Made by Inverse Vulcanization for Use as Mercury Sorbents." Organic Materials 03, no. 02 (April 2021): 362–73. http://dx.doi.org/10.1055/a-1502-2611.

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Inverse vulcanization is a process in which highly abundant and low-cost elemental sulfur is copolymerized with an unsaturated organic molecule such as a polyene. This process has provided a variety of useful materials with high sulfur content—typically 50% or greater in sulfur by mass. These materials have garnered increasing interest in research as sorbents for mercury, due to the high affinity of sulfur for mercury. In this review, the features of mercury sorbents made by inverse vulcanization are presented. Additionally, case studies are provided to illustrate the variety of polymer architectures accessible with this chemistry, the versatility of these materials in mercury remediation, and prospects for industrial use.1 Introduction2 Sulfur Polymers by Inverse Vulcanization3 Sulfur Polymers as Mercury Sorbents4 Increasing Surface Area to Improve Mercury Uptake5 Crosslinker Considerations6 Sorption of Different Forms of Mercury7 Life-Cycle Management8 Conclusions and Outlook
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Egorin, Andrei, Eduard Tokar, Anastasia Kalashnikova, Tatiana Sokolnitskaya, Ivan Tkachenko, Anna Matskevich, Evgeny Filatov, and Larisa Zemskova. "Synthesis and Sorption Properties towards Sr-90 of Composite Sorbents Based on Magnetite and Hematite." Materials 13, no. 5 (March 6, 2020): 1189. http://dx.doi.org/10.3390/ma13051189.

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The article describes the synthesis of composite sorbents by immobilizing iron oxide in a polymer matrix with subsequent hydrothermal treatment at a temperature of 175 °C. The sorbents based on magnetite and hematite were synthesized, their magnetic properties and phase composition were evaluated, and the iron content was determined. Sorption characteristics of the composites towards microconcentrations of Sr-90 radionuclide in solutions with different mineralization and pH were investigated. It was shown that the sorbent based on magnetite was the most efficient. In alkaline media with pH above 11, the composite sorbent based on magnetite exhibited increased selectivity towards Sr-90 and proved to be suitable for application under dynamic sorption conditions with subsequent desorption of the radionuclide with a solution of HNO3.
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DORSKAIA, Elena V., Yuri A. LEYKIN, Sergei M. PESTOV, and Aleksei E. KOVALENKO. "EXTRACTION OF LIPID PROFILE COMPONENTS FROM PLASMA BY VARIOUS FORMS OF POLYMERIC SORBENTS WITH THE AMMONIUM AND PHOSPHONIUM BASE GROUPS." Periódico Tchê Química 16, no. 31 (January 20, 2019): 595–606. http://dx.doi.org/10.52571/ptq.v16.n31.2020.602_periodico31_pgs_595_606.pdf.

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Cardiovascular diseases are the leading causes of death globally. The purpose of the article is to reveal the forms of anion exchangers with groups of ammonium and phosphoniumbases, which are the most promising for selective extraction of low- and very-low-density lipoprotein cholesterol (LDL and VLDL), their increased content beinga risk factor of circulatory system diseases. This research is of practical importance considering insufficient selectivity and side effects of commercial sorbents. The main method applied is a screening of a number of sorbents by sorption parameters of lipid profile components to reveal optimum samples for LDL and VLDL removal. We carried out a comparative analysis of sorption characteristics by the components of lipid profile for anion exchangers with groups of onium bases (ammonium and phosphonium) in three forms: hydroxyl, chloride, and bicarbonate. Sorbent capacity for lipid profile components (up to 5.65 μmol/g by LDL and VLDL), as well as sorption efficiency factors, were found (LDL and VLDL selectivity coefficient was up to 6.06). The ability of sorbents to influence plasma atherogenicity was characterized. The most promising forms of anion exchangers for the selective sorption of lipids were defined: in general, these were OH-forms. A sorbent with ammonium base groups has higher sorption capacity, and a sorbent with phosphonium base groups has a higher selectivity for atherogenic LDL and VLDL. The data of the article may be useful in the development and practical application of sorption columns for selective removal of LDL and VLDL cholesterol with minimal side effects.
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Hroboňová, Katarína, Andrea Špačková, and Martina Ondáková. "Application of solid-phase extraction for isolation of coumarins from wine samples." Nova Biotechnologica et Chimica 18, no. 1 (June 1, 2019): 37–43. http://dx.doi.org/10.2478/nbec-2019-0005.

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Abstract Coumarins can be as a result wine storage and aging in wood drums and they can affect organoleptic characteristics of wine. The aim of this work was to determine the content of coumarins in wine samples originated from Slovak Tokaj wine region. The HPLC method with high specificity, accuracy, precision, and recovery was proposed. SPE sorbents of C18 type, styrene-divinylbenzene copolymer and molecularly imprinted polymers were compared for extraction of six coumarins, coumarin, aesculin, scoparone, scopoletin, 4-methylumbelliferone, and herniarin. Higher recoveries (above 89 %; except aesculin – recoveries higher from 68 %, RSDs less than 6 %) were obtained with selective polymeric sorbent laboratory prepared by molecularly imprinted technology. The results showed that content of coumarins in wine samples are in ng.mL−1 concentration levels and depend on the age and wine puttony.
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Hummel, Darius, Andreas Fath, Thilo Hofmann, and Thorsten Hüffer. "Additives and polymer composition influence the interaction of microplastics with xenobiotics." Environmental Chemistry 18, no. 3 (2021): 101. http://dx.doi.org/10.1071/en21030.

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Environmental contextThe effects of the presence of polymer additives and polymeric structure on sorption of xenobiotics to microplastics remain unclear. Our results combined data from experimental sorption batch experiments using three environmentally relevant model sorbates with confocal microscopy. This provides clear evidence that both factors play a major role in sorption strength and the underlying sorption process, affecting sorption onto the particle surface and partitioning into the bulk polymer. AbstractMicroplastics are particulate contaminants of global concern. Interactions of microplastics with organic contaminants are frequently studied with commercially available polymer materials as surrogates. The influence of the polymer structure (i.e. internal 3D polymer geometry and monomer chain length) and the presence of additives on their interactions with xenobiotics remains unclear. This work investigates sorption of three sorbates of environmental concern to two polyamide (PA) and two polyvinyl chloride (PVC) sorbents of different molecular composition and additive content, respectively. Sorption was studied using complementary data from sorption isotherms and confocal laser-scanning microscopy. The additives in PVC increased sorption affinity owing to an increased sorbent hydrophobicity and a higher void volume within the polymer. Surface area normalisation indicated surface adsorption for unplasticised PVC and absorption for 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH)-plasticised PVC, which were confirmed using confocal laser-scanning microscopy. The strong sorption to PA was mainly driven by hydrogen-bond interactions. The contribution depended on the molecular features of the sorbent and the sorbate. Confocal laser-scanning microscopy showed that PA6 was taking up more sorbate into its bulk polymer matrix than PA12, the two being different in their chemical composition. This difference could be attributed to the higher swelling capability of PA6. The results emphasise that the molecular structure of the polymer and the presence of additives have to be taken into consideration when sorption of organic substances to plastics is investigated.
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Zyablov, Alexander N., Svetlana A. Khalzova, and Vladimir F. Selemenev. "SORPTION OF RED FOOD COLORING POLYMERS WITH MOLECULAR IMPRINTS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 7 (August 24, 2017): 42. http://dx.doi.org/10.6060/tcct.2017607.5595.

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Polymers with molecular imprints are used as modifiers of the surface of piezoelectric sensors, so it is necessary to study their sorption properties. Isotherms of sorption of synthetic dyes with polymers with molecular imprint and their comparison polymers are obtained. The type of sorption isotherm is characteristic for polymeric materials with micro- and mesopores. The maximum sorption capacity of polymers in relation to dyes is determined, the areas of the projection of the dye molecules on the surface of the sorbent are estimated. With the sorption of multiply charged anionic dye particles, the surface of the sorbent acquires a partial negative charge, which makes it difficult to sorbate as the surface concentration of the sorbate increases. The efficiency of sorption of azo dyes by polymers with molecular imprint from aqueous solutions depends on the amount of ionized sulfo groups in the azo dye molecule, their location in the benzene ring, the symmetry of the dye molecule. Sorption of azo dye by polymers with molecular prints is mainly due to the formation of hydrogen bonds between the sulphonic group of the dye and the hydroxyl group of the sorbent. The area of the projections of molecules on the surface of the modified polymer for all the dyes does not exceed the calculated values of the areas of the molecules, which indicates a loose filling of the sorbent surface and it is probable that the orientation of the dye molecules in the adsorption layer is close to perpendicular to the surface of the sorbent. The values of extraction rates and distribution coefficients are determined, the imprinting factor is calculated. The highest imprinting factor was obtained for the azo dye Ponso 4R. It has been established that polymers with molecular imprinting based on polyimide have better sorption ability with respect to target molecules than their comparison polymers.Forcitation:Zyablov A.N., Khalzova S.A., Selemenev V.F. Sorption of red food coloring polymers with molecular imprints. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 7. P. 42-47.
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Dissertations / Theses on the topic "Polymerní sorbenty"

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Bariyeva, Aizat. "Optimalizace adsorpce kyseliny ferulové na různých typech adsorbentů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2019. http://www.nusl.cz/ntk/nusl-401937.

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This thesis deals with optimalization processes of adsorption of ferulic acid on different types of sorbents. Specifically, was used the activated carbon as a sorbent of heterogeneous character and Amberlyst A-21 and Amberlit XAD-16 as macroporous polymer sorbents. The ferulic acid is fully characterized in the theoretical part and are discussed the problems of adsorption processes. To determination of the phenolic acid were used UV-VIS and HPLC instrumental methods. The main aim of the experimental part is to optimize various parameters of adsorption, including the construction of adsorption isotherms, determination of maximum adsorption capacity of individual sorbents, study of kinetics and mechanisms of adsorption. Determination of the influence of salt was studied to assess the impact of the inorganic salts on the ferulic acid adsorption capacity. Based on these parameters, was carried out determination of an optimal pH value on 3, with an optimal adsorbent load (m/V ratio = 0,009 gml-1) and a contact time of 50 min for all three adsorbents. Equilibrium studies described by adsorption isotherms and the Langmiur model fitted the best, and the maximum adsorption capacities were determined for all three sorbents with 150,4 mgg-1 for activated carbon, 209,1 mgg-1 for Amberlyst A-21 and 82 mgg-1 for Amberlyte XAD-16. In the study of kinetic models was selected pseudo-second model for all three adsorbents, which correlated with the results obtained by the Langmuir isotherm. The decrease in adsorption capacity in the determination of NaCl influence was 4 % for activated carbon, for macroporous polymer sorbents was decreased by 52 % and 55 % for Amberlyst A-21 and Amberlyt XAD-16 respectively. In a selectivity test under optimized conditions, adsorption strength increased in the order of sinapic acid ferulic acid p-coumaric acid for polymeric sorbent XAD-16 and activated carbon. For the A-21 sorbent the adsorption strength increased in the order of p-coumaric acid ferulic acid sinapic acid. The results of the work indicate the suitability of all three sorbents for the phenolic acid adsorption.
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Tang, Shuo. "DEVELOPMENT OF NOVEL TEMPERATURE RESPONSIVE POLYMERIC SORBENTS AND THEIR APPLICATIONS IN WATER REMEDIATION." UKnowledge, 2019. https://uknowledge.uky.edu/cme_etds/101.

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Water remediation utilizing sorption has found strong interest due to its inexpensiveness, universal nature and ease of operation. In particular, thermo-responsive sorbents consisting of N-isopropylacrylamide (NIPAAm) offer significant potential as “smart” and advanced materials to remove multiple aqueous pollutants. NIPAAm exhibits excellent thermo-responsiveness, which senses the external temperature variation and changes its swelling and sorption behaviors in a sharp and rapid manner. At the beginning of this work, an extensive review of literature has been compiled to provide a summary of NIPAAm-based thermo-responsive sorbents in water/wastewater remediation applications. Initially, we developed a novel approach to synthesize and characterize NIPAAm copolymeric hydrogels. Four different polyphenolic crosslinkers including curcumin multiacrylate (CMA), quercetin multiacrylate (QMA), 4,4’-dihydroxybiphenyl diacrylate (44BDA) and chrysin multiacrylate (ChryMA) were successfully incorporated into crosslinked hydrogels. Their temperature responsiveness and lower critical solution temperature (LCST) were characterized using swelling studies and differential scanning calorimetry (DSC). Increasing the crosslinker content resulted in a significant decrease in the swelling ratio and LCST, which was due to the increased crosslinking and hydrophobicity introduced by the polyphenolic crosslinkers. We also demonstrated the application of two sets of aforementioned crosslinked hydrogels (NIPAAm-co-CMA and NIPAAm-co-44BDA) as effective gel sorbents to capture phenol as a model contaminant. Temperature-dependent sorption was evaluated through a binding study of phenol at 10°C and 50°C. Significant enhancement in the sorption was observed at 50°C, and this can be attributed to the phase transition induced hydrophobic interactions between the copolymer gel and phenol. Moreover, the obtained hydrogels possessed facile and efficient regeneration ability in water at 10°C, without requiring harsh solvent treatment or high energy input. Building on the sorption behavior observed with crosslinked NIPAAm hydrogels, we extended the investigation to linear copolymer systems, and these were demonstrated as a temperature responsive flocculants. Here, NIPAAm copolymers consisting of 2-phenylphenol monoacrylate (2PPMA) were successfully developed as smart flocculants to remove metal oxide nanoparticles (e.g., Fe3O4, CeO2, TiO2). The incorporation of 2PPMA enhanced the flocculation at temperatures above the LCST (e.g., 50°C), which was due to the combined hydrophobicity of 2PPMA and NIPAAm. Overall, NIPAAm-based sorbents have a variety of applications in aqueous pollutant removal and are a promising class of materials for cost-effective water remediation technology.
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Pan, Lin. "In-situ Infrared Study of Amine-Functionalized Polymer Sorbents for CO2 Capture." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1427207675.

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Henning, D. S. (Dominique S. ). "Adsorption of bilirubin of polymer sorbents." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72026.

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Adsorption of bilirubin from aqueous buffer (pH = 7.8) by PVP, by cholestyramine and by amino acid containing pendants, which have been immobilized onto a polystyrene (Merrifield) resin or a water swellable polyamide resin using the solid phase peptide synthesis methods, have been studied. The adsorption of bilirubin by the pendants on the Merrifield resin was minimal while PVP and cholestyramine adsorbed some bilirubin. However, the best adsorbents were the immobilized amino acids on a water swellable polyamide resin.
A systematic study of the effect of the changes in the amino acid composition of the pendant, both in type and number, on the adsorption by the polyamide resins indicates that the change density, contributed by the R groups of the amino acids in the pendant, is the major factor in the adsorption process. However, some adsorption also occurs at the (alpha)-amino groups. Effects due to the conformation of the peptide chains are also indicated. Of the resins studied, those with peptide pendants containing arginine or lysine form the most efficient adsorbents for bilirubin in aqueous buffer solution.
Studies of the adsorption of bilirubin from bilirubin solutions containing bovine serum albumin as well as studies of desorption of bilirubin from the resins by bovine serum albumin indicates that some resins containing arginine in the pendants can successfully compete with albumin. Stoichiometric binding constants obtained for the polyamide resins by the method of Klotz are of the order of 1 x 10('3) M('-1) to 86 x 10('3) M('-1). These binding constants are lower than that of the reported values for the first binding site of bilirubin on albumin by a factor of 10('1) to 10('4) and lower by a factor of 10 to 10('3) than the values reported for the second binding site.
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Ritt, Cody. "Assessment of Molecularly Imprinted Polymers as Phosphate Sorbents." Thesis, North Dakota State University, 2017. https://hdl.handle.net/10365/28417.

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Wastewater effluents and agricultural runoff are major sources of phosphorus overloading in surface waters. Phosphorus overloading ignites eutrophication, which devastates aquatic ecosystems. On the other hand, phosphorus, which is currently produced from phosphate rock, is a critical component of fertilizer mixes. However, the world is predicted to face a shortage of phosphate supply beyond 2033 due to unsustainable mining. This research aims to develop a polymeric sorbent that recovers low-concentration phosphorus for eutrophication prevention and fertilizer reuse. Available polymer-based products have underwhelmed expectations by having poor selectivity or lacking appropriate biodegradation rates. This research identified molecularly imprinted polymers (MIPs) as possible sorbents for overcoming the deficiencies of reported technologies. Screening of several MIPs resulted in one potentially feasible MIP for phosphate sorption. Further studies showed a sorption capacity of ~28 mg PO43--P/g and partial phosphate-selectivity. Potential phosphate removal mechanisms were identified, providing foresight into MIPs? viability as phosphorus sorbents.
North Dakota Department of Commerce (NDDoC Grant #: 14-11-J1-70); the National Institute of Food and Agriculture (NIFA-USDA Grant #: 2015-607022-22996); North Dakota Water Resources Research Institute (NDWRRI)
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Meyer, Christoph. "Polymer-based chromatographic sorbents synthesis, characterization, and application /." [S.l. : s.n.], 2005. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11947869.

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Jin, Hailiang. "Development of Polymeric SO2 Resistant Coating for Solid Amine Sorbent." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1428180854.

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Li, Fuyue. "Amine-functionalized polymeric hollow fiber sorbents for post-combustion CO2 capture." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52991.

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Polymeric hollow fiber sorbents were functionalized with amine moieties for improving the carbon dioxide sorption capacity from flue gas to reduce the greenhouse gas emissions from coal-fired power plants. Three different experimental pathways were studied to form the amine-functionalized hollow fiber sorbents. Aminosilane functionalized cellulose acetate (CA) fibers, polyethyleneimine (PEI) functionalized polyamide-imide (PAI, Torlon®) fibers and PEI post-infused and functionalized Torlon®-silica fibers were formed. CO2 equilibrium sorption capacity data were collected by using the pressure decay sorption cell and thermal gravimetric analyzer. Other physio-chemical properties of the amine-functionalized fiber sorbents were characterized by using fourier-transform infrared spectroscopy, elemental analysis, and scanning electronic microscopy. Different reaction conditions were studied on the effect of sorption isotherms. Aminosilane-CA fibers were the first proof-of-concept for forming the amine functionalized polymer hollow fibers. PEI-PAI fibers were designed as a new method to reach enhanced sorption capacities than Aminosilane-functionalized CA fibers. PEI post-infused and functionalized Torlon®-silica fibers have further enhanced sorption capacity; however they easily degrade with similar reaction for forming PEI-PAI fibers. Lumen-side barrier layers were created successfully via post-treatment technique of using the crosslinked Neoprene® polymer onto PEI-functionalized PAI fibers. PEI-functionalized PAI fibers also have good cyclic stability and low heat of sorption.
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Li, Fuyue. "Amine-functionalized polymeric hollow fiber sorbents for post-combustion CO₂ capture." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53119.

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Polymeric hollow fiber sorbents were functionalized with amine moieties for improving the carbon dioxide sorption capacity from flue gas to reduce the greenhouse gas emissions from coal-fired power plants. Three different experimental pathways were studied to form the amine-functionalized hollow fiber sorbents. Aminosilane functionalized cellulose acetate (CA) fibers, polyethyleneimine (PEI) functionalized polyamide-imide (PAI, Torlon® fibers and PEI post-infused and functionalized Torlon®-silica fibers were formed. CO₂ equilibrium sorption capacity data were collected by using the pressure decay sorption cell and thermal gravimetric analyzer. Other physio-chemical properties of the amine-functionalized fiber sorbents were characterized by using fourier-transform infrared spectroscopy, elemental analysis, and scanning electronic microscopy. Different reaction conditions were studied on the effect of sorption isotherms. Aminosilane-CA fibers were the first proof-of-concept for forming the amine functionalized polymer hollow fibers. PEI-PAI fibers were designed as a new method to reach enhanced sorption capacities than Aminosilane-functionalized CA fibers. PEI post-infused and functionalized Torlon®-silica fibers have further enhanced sorption capacity; however they easily degrade with similar reaction for forming PEI-PAI fibers. Lumen-side barrier layers were created successfully via post-treatment technique of using the crosslinked Neoprene® polymer onto PEI-functionalized PAI fibers. PEI-functionalized PAI fibers also have good cyclic stability and low heat of sorption.
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Fayemi, Omolola Esther. "The development of platinum and palladium-selective polymeric materials." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1002964.

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The adsorption and separation of platinum(IV) and palladium(II) chlorido species (PtCl₆²⁻ and PdCl₄²⁻) on polystyrene-based beads and nanofibers as well as silica microparticles functionalized with polyamine centres derived from ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetriamine (TETA) and tris-(2-aminoethyl)amine (TAEA) is described. The functionalized sorbent materials were characterized by using microanalysis, SEM, XPS, BET and FTIR. The nanofiber sorbent material functionalized with ethylenediamine (F-EDA) had the highest loading capacity which was attributed to its high nitrogen content (10.83%) and larger surface area (241.3m²/g). The adsorption and loading capacities of the sorption materials were investigated using both the batch and column studies in 1 M HCI. The adsorption studies for both PtCl₆²⁻ and PdCl₄²⁻ on the polystyrene-based sorbent materials fit the Langmuir isotherm while the silica-based sorbents fitted the Freundlich isotherm with R² values > 0.99. In the column experiment the highest loading capacity of Pt and Pd were 7.4 mg/g and 4.3 mg/g respectively on the nanofiber sorbent material based on ethylenediamine (EDA). The polystyrene and silica-based resins with triethylenetetramine (TETA) functionality (M-TETA and S-TETA) showed selectivity for platinum and palladium, respectively. Metal chlorido complexes loaded on the sorbent materials were recovered by using 3% m/v thiourea solution as teh eluting agent with quantitative desorption efficiency under the selected experimental conditions. The separation of platinum from palladium was partially achieved by selective stripping of PtCl₆²⁻ with 0.5 M of NaClO₄ in 1.0 M HCI with PdCl₄²⁻ was eluted with 0.5 M thiourea in 1.0 M HCI. The selectivity of the M-TETA and S-TETA sorbent materials was proved by column separation of platinum(IV) and palladium(II), respectively, from synthetic solutions containing iridium(IV) and rhodium(III). The loading capacity for platinum on M-TETA was 0.09 mg/g while it was 0.27 mg/g for palladium on S-TETA.
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Books on the topic "Polymerní sorbenty"

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1952-, Buchholz Fredric L., and Graham Andrew T. 1945-, eds. Modern superabsorbent polymer technology. New York: Wiley-VCH, 1998.

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Superabsorbent polymers: Science and technology. Washington, DC: American Chemical Society, 1994.

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Great Britain. Health and Safety Executive. Occupational Medicine and Hygiene Laboratory., ed. Mixed hydrocarbons (C3 to C10) in air: Laboratory method using pumped porous polymer and carbon sorbent tubes, thermal desorption and gas chromatography. [London]: HMSO, 1992.

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Book chapters on the topic "Polymerní sorbenty"

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Nikolaev, V. G., V. V. Sarnatskaya, E. V. Eretskaya, E. A. Snezhkova, and N. V. Belitser. "Physical and Biological Modification of Carbonic Sorbents." In Biologically Modified Polymeric Biomaterial Surfaces, 125–28. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1872-9_16.

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Hunt, Gary. "Potential Organic Contamination Associated with Commercially Available Polymeric Sorbents." In Advances in Chemistry, 247–65. Washington, DC: American Chemical Society, 1986. http://dx.doi.org/10.1021/ba-1987-0214.ch011.

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Basan, Hasan. "Molecularly Imprinted Solid-Phase Extraction Sorbents for the Selective Extraction of Drugs from." In Molecularly Imprinted Polymers, 123–30. New York, NY: Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-1629-1_10.

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Jumadilov, T. K., and R. G. Kondaurov. "Intergel Systems: Universal Sorbents for Different Nature Ions Sorption." In Science and Technology of Polymers and Advanced Materials, 201–13. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429425301-16.

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Hayrapetyan, Sergey S., Lilit S. Banyan, Lusine G. Mangasaryan, and Hambardzum G. Khachatryan. "Obtaining of the Hybrid Slica-Polymer Sorbents for Liquid Chromatography." In Sol-Gel Methods for Materials Processing, 323–29. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8514-7_23.

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Efendiev, A. A. "Diffusion of Metal Ions in Carboxylic Polymer Sorbents of Different Morphologic Structure." In The Interfacial Interactions in Polymeric Composites, 437–38. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1642-8_25.

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Volkov, Vladimir Vasilievich, and Yury Pavlovich Yampolskii. "Free Volume and Microporosity in Polymeric Gas Separation Membrane Materials and Sorbents." In Structural Properties of Porous Materials and Powders Used in Different Fields of Science and Technology, 135–58. London: Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-6377-0_7.

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Denizli, A., B. Salih, and E. Pişkin. "Diamine-Plasma Deposited Poly(Hydroxyethyl Methacrylate) Microspheres as Specific Sorbents for Removal of Copper(II) Ions." In Plasma Processing of Polymers, 423–33. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-015-8961-1_23.

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Kumar, Suresh. "Functionalization of Graft Copolymers of Poly (Ethyl Acrylate) and Cellulose by Post Polymer Reactions to Develop Reactive Metal Ion Sorbents." In Techno-Societal 2020, 983–93. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69925-3_94.

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Fontanals, Núria, Rosa M. Marcé, and Francesc Borrull. "Porous polymer sorbents." In Solid-Phase Extraction, 55–82. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-816906-3.00003-0.

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Conference papers on the topic "Polymerní sorbenty"

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Chis, Timur, Stefan Petrache, and Olga Sapunaru. "THE USE OF OIL-CAKE (SUNFLOWER) IN THE DEPOLLUTION OF PETROLEUM INFESTED WATER." In GEOLINKS Conference Proceedings. Saima Consult Ltd, 2021. http://dx.doi.org/10.32008/geolinks2021/b1/v3/28.

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"Oil pollution of surface and groundwater is an undesirable phenomenon but it is possible to happen. The pollutant can appear as a result of leaks from the transport pipelines, the damage of the oil extraction and processing installations, and the distribution states of the petroleum products. In the vast majority of interventions to combat pollution, polymeric sorbents are used which are spread over the pollutant and then washed with warm water. This technology does not completely clean the pollutants, and the polymeric sorbents are difficult to remove. Oil-cake (sunflower) is a grated residue after oil extraction and contains the amino acid lysine and high content of fiber and methionine. At a quantity of 100 kg of sunflower seeds, a processor obtains a quantity of 35 kg of residual mass consisting of a sunflower meal. This product can be used as a sorbent for petroleum products, being then used to produce green energy. The physical properties of two sorbent substances (sunflower oil and peat) are presented. Also, their adsorption capacities for four pollutants specific to the oil industry (gasoline, diesel, paraffin oil and sulfur oil) are analyzed, as well as the adsorption kinetics. The adsorption equations of the pollutants are also described."
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Avramenko, Valentin, Svetlana Bratskaya, Veniamin Zheleznov, Irina Sheveleva, Dmitry Marinin, and Valentin Sergienko. "Latex Particles Functionalized With Transition Metals Ferrocyanides for Cesium Uptake and Decontamination of Solid Bulk Materials." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40302.

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Decontamination of spent ion-exchange resins, corrosion-unstable metal structures, soil, ground, and construction materials contaminated by fission, corrosion and transuranic radionuclides remains one of the most urgent and complicated ecological problems. Among the existing methods having different efficiencies in regard to such materials decontamination, application of selective sorbents put into a humid medium to be decontaminated (ground, bulk materials) appears to be rather extensive. However, the efficiency of such an approach is significantly limited by difficulties concerned with uniform sorbent distribution in porous media and completeness of spent sorbents removal for final disposal. In this paper we suggest a principally new approach to preparation of colloid-stable selective sorbents for cesium uptake using immobilization of transition metals (cobalt, nickel, and copper) ferrocyanides in nanosized carboxylic latex emulsions. The effects of ferrocyanide composition, pH, and media salinity on the sorption properties of the colloid-stable sorbents toward cesium ions were studied in solutions containing up to 200 g/1 sodium nitrate or potassium chloride. The sorption capacities of the colloid sorbents based on mixed potassium/transition metals ferrocyanides were in the range 1.45–1.86 mol Cs/mol ferrocyanide with the highest value found for the copper ferrocyanide. It was shown that the obtained colloid-stable sorbents were capable to penetrate through bulk materials without filtration that makes them applicable for decontamination of solids, e.g. soils, zeolites, spent ion-exchange resins contaminated with cesium radionuclides. After decontamination of liquid or solid radioactive wastes the colloid-stable sorbents can be easily separated from solutions by precipitation with cationic flocculants providing localization of radionuclides in a small volume of the precipitates formed. Besides, functionalized latex particles can be used for preparation of carbon fiber/ferrocyanide composite materials for cesium uptake using electrodeposition method. Application of the carbon fibers as an inert support for ferrocyanides, in general, significantly improves the sorption kinetics, but washing out of ferrocyanide fines from the fiber surface limits the potential of such materials. When ferrocyanides are deposited in a form of nanocrystals stabilized by latexes which undergo electropolymerization on the fiber surface, the thin polymeric film formed substantially improves the stability of the composite and prevents loss of ferrocyanide during sorbent application. The effect of electrodeposition conditions on composite morphology, ferrocyanide loading and cesium distribution coefficient in media with different salinity has been discussed.
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OLEKHNOVICH, ROMAN OLEGOVICH, KONSTANTIN GENNADIEVICH GUSEV, ALEXANDR LEONIDOVICH ISHEVSKIY, MAYYA VALERIEVNA USPENSKAYA, and INNA EVGENIEVNA STRELNIKOVA. "EFFECT OF FRIENDLY SORBENTS ON BASE POLYMER NANOCOMPOSITES." In WATER RESOURCES MANAGEMENT 2017. Southampton UK: WIT Press, 2017. http://dx.doi.org/10.2495/wrm170041.

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Ivanov, Victor F., Valeria T. Ivanova, Yanina E. Kurochkina, Oksana L. Gribkova, Maria V. Ilyina, Anatoly A. Manykin, Aleksandra A. Isakova, et al. "Virus Sorbents Based on Polyaniline Interpolymer Complexes, Composites and their Sorption Properties." In V INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2010. http://dx.doi.org/10.1063/1.3455659.

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Zakia, Neena, Handajaya Rusli, M. Zulfikar, and M. Amran. "Molecularly Imprinted Polymer as a Sorbent for Alpha Mangostin." In Proceedings of the 7th Mathematics, Science, and Computer Science Education International Seminar, MSCEIS 2019, 12 October 2019, Bandung, West Java, Indonesia. EAI, 2020. http://dx.doi.org/10.4108/eai.12-10-2019.2296389.

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Chopabayeva, Nazira N., Kanatbek N. Mukanov, and Amandyk T. Tasmagambet. "Synthesis and application of nano-, meso- and macroporous sorbents based on lignin for detoxication of biological fluids." In TIMES OF POLYMERS (TOP) AND COMPOSITES 2014: Proceedings of the 7th International Conference on Times of Polymers (TOP) and Composites. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4876771.

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Pokhitonov, Yury, Vasiliy Babain, Vladislav Kamachev, and Dennis Kelley. "Russia: Results and Prospects of Liquid Solidification Experiments at ROSATOM Sites." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59112.

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Ongoing experimental work has been underway at selected nuclear sites in the Russian State Atomic Energy Corporation (ROSATOM) during the past two years to determine the effectiveness, reliability, application and acceptability of high technology polymers for liquid radioactive waste solidification. The long term project is funded by the U.S. Department of Energy’s Initiatives for Proliferation Prevention (IPP) program. IPP was established in 1994 as a non-proliferation program of DOE / National Nuclear Security Administration and receives its funding each year through Congressional appropriation. The objectives of IPP are: • To engage former Soviet nuclear weapons scientists, engineers and technicians, currently or formerly involved with weapons of mass destruction, in peaceful and sustainable commercial activities. • To identify non-military, commercial applications for former Soviet institute technologies through cooperative projects among former Soviet weapons scientists, U.S. national laboratories and U.S. industry. • To create new technology sources and to provide business opportunities for U.S. companies, while offering commercial opportunities and meaningful employment for former weapons scientists. Argonne National Laboratory provides management oversight for this project. More than 60 former weapons scientists are engaged in this project. With the project moving toward its conclusion in 2012, the emphasis is now on expanding the experimental work to include the sub-sites of Seversk (SCC), Zheleznogorsk (MCC) located in Siberia and Gatchyna (KRI) and applying the polymer technology to actual problematic waste streams as well as to evaluate the prospects for new applications, beyond their current use in the nuclear waste treatment field. Work to date includes over the solidification of over 80 waste streams for the purpose of evaluating all aspects of the polymer’s effectiveness with LLW and ILW complex waste. Waste stream compositions include oil, aqueous, acidic and basic solutions with heavy metals, oil sludge, spent extractants, decontamination solutions, salt sludge, TBP and other complex waste streams. Extensive irradiation evaluation (up to 270 million rad), stability and leach studies, evaporation and absorption capacity tests and gas generation experimentation on tri-butyl phosphate (TBP) waste have been examined. The extensive evaluation of the polymer technology by the lead group, V.G. Khlopin Radium Institute, has resulted in significant discussion about its possible use within the ROSATOM network. At present the focus of work is with its application to legacy LLW and ILW waste streams that exist in a variety of sectors that include power plants, research institutes, weapons sites, submarine decommissioning and many others. As is the case in most countries, new waste treatment technologies first must be verified by the waste generator, and secondly, approved for use by the government regulators responsible for final storage. The polymer technology is the first foreign sorbent product to enter Russia for radioactive waste treatment so it must receive ROSATOM certification by undergoing irradiation, fire / safety and health / safety testing. Experimental work to date has validated the effectiveness of the polymer technology and today the project team is evaluating criteria for final acceptance of the waste form by ROSATOM. The paper will illustrate results of the various experiments that include irradiation of actual solidified samples, gas generation of irradiated samples, chemical stability (cesium leach rate) and thermal stability, oil and aqueous waste stream solidification examples, and volume reduction test data that will determine cost benefits to the waste generator. Throughout the course of this work, it is apparent that the polymer technology is selective in nature; however, it can have broad applicability to problematic waste streams. One such application is the separation and selective recovery of trans-plutonium elements and rare earth elements from standard solutions. Another application is the use of polymers at sites where radioactive liquids are accidently emitted from operations, thus causing the risk of environmental contamination.
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Alnaqbi, Mohamed, Afra Alblooshi, and Yaser Greish. "Cleaning and Retrieval of Spilled Crude Oil and its Application as a Refinery Feedstock Using Highly Efficient Polymeric Nanofibrous Sorbents." In Abu Dhabi International Petroleum Exhibition & Conference. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/193256-ms.

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Mahmood, Ahmed Raoof, Ibtihal Qahtan Abdallah, Mustafa A. Alheety, Hüseyin Akbaş, and Ahmet Karadağ. "N, O-rich graphene oxide based eggshell membrane polymer: Preparation, characterization and its utility as nano sorbent for solid phase extraction of Pb (II) in various water samples." In THE 7TH INTERNATIONAL CONFERENCE ON APPLIED SCIENCE AND TECHNOLOGY (ICAST 2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5123060.

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Reports on the topic "Polymerní sorbenty"

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Kennedy, Alan, Mark Ballentine, Andrew McQueen, Christopher Griggs, Arit Das, and Michael Bortner. Environmental applications of 3D printing polymer composites for dredging operations. Engineer Research and Development Center (U.S.), January 2021. http://dx.doi.org/10.21079/11681/39341.

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This Dredging Operations Environmental Research (DOER) technical note disseminates novel methods to monitor and reduce contaminant mobility and bioavailability in water, sediments, and soils. These method advancements are enabled by additive manufacturing (i.e., three-dimensional [3D] printing) to deploy and retrieve materials that adsorb contaminants that are traditionally applied as unbound powders. Examples of sorbents added as amendments for remediation of contaminated sediments include activated carbon, biochar, biopolymers, zeolite, and sand caps. Figure 1 provides examples of sorbent and photocatalytic particles successfully compounded and 3D printed using polylactic acid as a binder. Additional adsorptive materials may be applicable and photocatalytic materials (Friedmann et al. 2019) may be applied to degrade contaminants of concern into less hazardous forms. This technical note further describes opportunities for U.S. Army Corps of Engineers (USACE) project managers and the water and sediment resource management community to apply 3D printing of polymers containing adsorptive filler materials as a prototyping tool and as an on-site, on-demand manufacturing capability to remediate and monitor contaminants in the environment. This research was funded by DOER project 19-13, titled “3D Printed Design for Remediation and Monitoring of Dredged Material.”
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Zhou, Hong-Cai Joe, Gregory Steven Day, and Koray Ozdemir. Evaluation of amine-incorporated porous polymer networks (aPPNs) as sorbents for post­combustion CO2 capture. Office of Scientific and Technical Information (OSTI), April 2019. http://dx.doi.org/10.2172/1525327.

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Harvey, Scott D. Ultraselective Sorbents. Task 2: Molecularly Imprinted Polymers (MIPs)/Stabilized Antibody Fragments (STABs). Final Report FY 2004. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/15016482.

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Harvey, Scott D. Ultraselective Sorbents. Task 2: Molecularly Imprinted Polymers (MIPs)/Stabilized Antibody Fragments (STABs). Final Report -- Fiscal Year (FY) 2005. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/860003.

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