Log in

Relevant bibliographies by topics / Ion exchange adsorption / Journal articles

To see the other types of publications on this topic, follow the link: Ion exchange adsorption.

Journal articles on the topic 'Ion exchange adsorption'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ion exchange adsorption.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Song, Fujiao, Yan Cao, Yunxia Zhao, et al. "Ion-Exchanged ZIF-67 Synthesized by One-Step Method for Enhancement of CO2 Adsorption." Journal of Nanomaterials 2020 (February 17, 2020): 1–11. http://dx.doi.org/10.1155/2020/1508574.

Full text

Abstract:

Li+- and Na+-exchanged ZIF-67 was synthesized by a new one-step method of ion as-exchange technique and tested as CO2 adsorbents. As a comparison, the standard ion-exchange procedure was also carried out. The powder X-ray diffraction (XRD), scanning electronic microscope (SEM), particle size analyzer (PSD), and thermal gravimetry analysis (TGA) were used to investigate the effect of ion-exchange techniques on the structure of the materials. CO2 uptake of ZIF-67 ion exchanged by one-step method is much higher than that by the standard ion-exchange procedure. All of the adsorption isotherms show

APA, Harvard, Vancouver, ISO, and other styles

2

Theodoridou, E., A. D. Jannakoudakis, P. D. Jannakoudakis, and S. Antoniadou. "Electrochemically oxidized carbon fibres as an adsorbent for the attachment of dissolved substances. Adsorption of nitro compounds and ion-exchange of heavy metals." Canadian Journal of Chemistry 69, no. 12 (1991): 1881–85. http://dx.doi.org/10.1139/v91-272.

Full text

Abstract:

The adsorption of several aromatic nitro compounds and the ion-exchange of heavy metal ions on electro-oxidized carbon fibres have been investigated using cyclic voltammetric and polarographic techniques. Electro-oxidation is performed by potentiostatic double pulse application. This procedure results in the generation of many functional —OH and —COOH groups with adsorptive and ion-exchanging properties.Multimolecular layers of adsorbed substances may be formed through a procedure of successive adsorption of the nitro-compound and electro-reduction to the corresponding amine, resulting in the

APA, Harvard, Vancouver, ISO, and other styles

3

Chubar, Natalia. "New inorganic (an)ion exchangers with a higher affinity for arsenate and a competitive removal capacity towards fluoride, bromate, bromide, selenate, selenite, arsenite and borate." Water Supply 11, no. 5 (2011): 505–15. http://dx.doi.org/10.2166/ws.2011.080.

Full text

Abstract:

Highly selective materials and effective technologies are needed to meet the increasingly stronger drinking water standards for targeted ionic species. Inorganic ion exchangers based on individual and mixed-metal hydrous oxides (or mixed adsorbents that contain inorganic ion exchangers in their composition) are adsorptive materials that are capable of lowering the concentrations of anionic contaminants, such as H2AsO4−, H3AsO3, F−, Br−, BrO3−, HSeO4−, HSeO3− and H3BO3, to 10 μg/L or less. To achieve a higher selectivity towards arsenate, a new ion exchanger based on Mg–Al hydrous oxides was de

APA, Harvard, Vancouver, ISO, and other styles

4

Wesselingh, J. A., and J. C. Bosma. "Protein ion-exchange adsorption kinetics." AIChE Journal 47, no. 7 (2001): 1571–80. http://dx.doi.org/10.1002/aic.690470710.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Baes, Aloysius U., Tetsuji Okuda, Wataru Nishijima, Eiji Shoto, and Mitsumasa Okada. "Adsorption and ion exchange of some groundwater anion contaminants in an amine modified coconut coir." Water Science and Technology 35, no. 7 (1997): 89–95. http://dx.doi.org/10.2166/wst.1997.0264.

Full text

Abstract:

The adsorption of nitrate, chromium (VI), arsenic (V) and selenium (VI) anions in an amine modified coconut coir (MCC-AE : with secondary and tertiary amine functionality) were studied to determine the capability of this easily prepared and low-cost material in removing typical groundwater anion contaminants. Batch adsorption-ion exchange experiments were conducted using 200 mg MCC-AE, initially containing chloride as the resident anion, and 50 ml of different anion-containing water of varying concentrations. It is presumed, at this low pH, that only SeO42− remained as a divalent anion, while

APA, Harvard, Vancouver, ISO, and other styles

6

Noor, Ehteram A., and Fatma M. Al-Solmi. "Analysis of Adsorption, Ion Exchange, Thermodynamic Behaviour of Some Organic Cations on Dowex 50WX4-50/H+Cation Exchanger in Aqueous Solutions." E-Journal of Chemistry 8, s1 (2011): S171—S188. http://dx.doi.org/10.1155/2011/963603.

Full text

Abstract:

The equilibrium adsorption, ion exchange characteristics of various concentrations of some organic cations from aqueous solutions onto dowex 50WEX/H+cation exchanger were studied at different temperatures in the range of 30-50 °C. The studied cations showed good adsorptive properties onto dowex 50WX4-5/H+at different concentrations and temperatures. Main adsorption behaviour was ion exchange between hydrogen ions and the organic cations as indicated from the linear relation between the initial concentration of the organic cations and the released hydrogen ions. It was found that the adsorption

APA, Harvard, Vancouver, ISO, and other styles

7

Yu, Dan, Shintaro Morisada, Hidetaka Kawakita, et al. "Selective Cesium Adsorptive Removal on Using Crosslinked Tea Leaves." Processes 7, no. 7 (2019): 412. http://dx.doi.org/10.3390/pr7070412.

Full text

Abstract:

To remove the radioactive cesium from the polluted environment, tea leaves were chosen as cheap, and abundantly available environment-friendly bio-adsorbents to investigate the alkali metals adsorption. Fresh and used tea leaves (FT and UT) were found to have high efficiency and selectivity for cesium adsorption, after the crosslinking with concentrated sulfuric acid. Calculation of the proton-exchanged amount suggested adsorption mechanism of three alkali metals on crosslinked tea leaves involve a cationic exchange with a proton from the hydroxyl groups of the crosslinked tea leaves, as well

APA, Harvard, Vancouver, ISO, and other styles

8

Xue, Mei, Fen Rong Liu, and Huan Liu. "Adsorption of Thiophene Out of Model Gasoline Using Metal Ion-Exchanged Zeolite." Advanced Materials Research 391-392 (December 2011): 945–49. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.945.

Full text

Abstract:

Adsorptions of organic sulfur compounds thiophene was carried out using metal ion-exchanged Y-zeolites. Na-Yzeolites exchanged with Ag+, La3+, Cu2+, Ni2+, Bi3+ions were prepared by liquid ion exchange method. Ag+and La3+ions modified Yzeolites showed markedly high adsorptive capacities for Thiophene. The sulfur uptake increased in the order of Bi-Yzeolite < Ni-Yzeolite < CuY-zeolite < AgY-zeolite < LaY-zeolite for thiophene. The mole ratios of TP/Ag and TP/La were 0.098 and 0.071, respectively.

APA, Harvard, Vancouver, ISO, and other styles

9

Zhang, Shaoling, Akihiko Tanioka, and Hidetoshi Matsumoto. "De Novo Ion-Exchange Membranes Based on Nanofibers." Membranes 11, no. 9 (2021): 652. http://dx.doi.org/10.3390/membranes11090652.

Full text

Abstract:

The unique functions of nanofibers (NFs) are based on their nanoscale cross-section, high specific surface area, and high molecular orientation, and/or their confined polymer chains inside the fibers. The introduction of ion-exchange (IEX) groups on the surface and/or inside the NFs provides de novo ion-exchangers. In particular, the combination of large surface areas and ionizable groups in the IEX-NFs improves their performance through indices such as extremely rapid ion-exchange kinetics and high ion-exchange capacities. In reality, the membranes based on ion-exchange NFs exhibit superior p

APA, Harvard, Vancouver, ISO, and other styles

10

Hai Thinh, Pham Thi. "RESEARCH ON ION EXCHANGE CAPACITY OF OXIDIZEDACTIVATED CARBON." Vietnam Journal of Science and Technology 55, no. 4C (2018): 245. http://dx.doi.org/10.15625/2525-2518/55/4c/12159.

Full text

Abstract:

Ion exchange capacity of oxidized activated carbon (OAC) by HNO3 and surface treatment by NaOH solution was investigated. The HNO3oxidizedfunctional groups on the activated carbon surface, such as ketone, carboxylic acid and its derivatives, to maximum oxidation state. The OAC surface played the role as cation exchanger for adsorption of inorganic compounds, especially metallic cations. The adsorption capacity of OAC was investigated in batch mode with three representative ions with different valence from +1 to +3 (NH4+, Ca2+, Cr3+). The adsorption process was demonstrated by Langmuir and Freu

APA, Harvard, Vancouver, ISO, and other styles

11

Nabi, S. A., Mu Naushad, and Rani Bushra. "A New Hybrid EDTA–Zirconium Phosphate Cation-Exchanger: Synthesis, Characterization and Adsorption Behaviour for Environmental Monitoring." Adsorption Science & Technology 27, no. 4 (2009): 423–34. http://dx.doi.org/10.1260/026361709790252641.

Full text

Abstract:

EDTA–zirconium phosphate has been synthesized as a new amorphous hybrid cation-exchanger by the combination of the inorganic ion-exchanger zirconium phosphate and EDTA, thereby providing a new class of organic–inorganic hybrid ion-exchanger with better mechanical and granular properties, a good ion-exchange capacity (2.40 mequiv/g dry exchanger for Na+), good reproducibility, and a higher stability and selectivity towards heavy metal ions. It has been characterized using FT-IR, TGA/DTA, X-ray and SEM methods, in addition to ion-exchange studies such as the determination of its ion-exchange cap

APA, Harvard, Vancouver, ISO, and other styles

12

Tran, Hoai-Lam, Maw-Suey Kuo, Wein-Duo Yang, and Yu-Chang Huang. "Study on Modification of NaX Zeolites: The Cobalt (II)-Exchange Kinetics and Surface Property Changes under Thermal Treatment." Journal of Chemistry 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/1789680.

Full text

Abstract:

The cobalt (II) ion-exchange process followed the Freundlich and Langmuir adsorption models as well as the pseudo-second-order kinetic model. The cobalt-exchanged contents increased when the initial Co(NO3)2solution concentration increased up to 0.14 mol L−1at the optimal pH of 6.05. The N2adsorption isotherms are mixed types I/II isotherms and H3 type hysteresis. Both the micropore and mesopore adsorptions occurred during the adsorption process. The modification, which is both the cobalt (II) exchange and thermal treatment, significantly improved the surface properties of NaX zeolites. Accord

APA, Harvard, Vancouver, ISO, and other styles

13

Tang, Yu Bin, Fang Yu, Fang Yan Chen, and Cheng Chen. "Research on Adsorption of Pb²⁺ on to Microspheres Prepared by Rectorite and Humic Acid." Advanced Materials Research 233-235 (May 2011): 1972–80. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.1972.

Full text

Abstract:

Rectorite (REC), humic acid (HA) and polyvinyl alcohol (PVA) were used to prepare microspheres. Batch adsorption experiments of Pb2+ion on to the microspheres were performed. The results obtained indicate that adsorption time, the microspheres dosage and temperature were the main factors influencing the adsorptive capacities. The adsorption data for Pb2+ion were well described by the Freundlich, Langmuir and Temkin models. The kinetic experimental data properly correlated with the pseudo-first-order model, pseudo-second-order model and Elovich equation. The adsorption process is spontaneous, e

APA, Harvard, Vancouver, ISO, and other styles

14

Malovanyy, Myroslav, Kateryna Petrushka, and Ihor Petrushka. "Improvement of Adsorption-Ion-Exchange Processes for Waste and Mine Water Purification." Chemistry & Chemical Technology 13, no. 3 (2019): 372–76. http://dx.doi.org/10.23939/chcht13.03.372.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Fortes, M. C. B., A. H. Martins, and J. S. Benedetto. "Indium adsorption onto ion exchange polymeric resins." Minerals Engineering 16, no. 7 (2003): 659–63. http://dx.doi.org/10.1016/s0892-6875(03)00130-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Breytus, Anna, David Hasson, Raphael Semiat, and Hilla Shemer. "Ion exchange membrane adsorption in Donnan dialysis." Separation and Purification Technology 226 (November 2019): 252–58. http://dx.doi.org/10.1016/j.seppur.2019.05.084.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Litopoulou-Tzanetaki, E., A. Bayliss, R. A. Patchett, and R. G. Kroll. "Adsorption of bacteria to ion-exchange materials." Letters in Applied Microbiology 9, no. 6 (1989): 219–22. http://dx.doi.org/10.1111/j.1472-765x.1989.tb00330.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Silva, F. R. C., and C. C. Santana. "Adsorption of Inulinases in Ion-Exchange Columns." Applied Biochemistry and Biotechnology 84-86, no. 1-9 (2000): 1063–78. http://dx.doi.org/10.1385/abab:84-86:1-9:1063.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Clearfield, A. "Ion exchange and adsorption in layered phosphates." Materials Chemistry and Physics 35, no. 3-4 (1993): 257–63. http://dx.doi.org/10.1016/0254-0584(93)90141-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Laiq, Esmat, and Syed Ashfaq Nabi. "Preparation, Characterization and Analytical Application of Tin (IV) Tungstoselenate - 1, 10 Phenanthroline." Oriental Journal Of Chemistry 37, no. 4 (2021): 997–1001. http://dx.doi.org/10.13005/ojc/370430.

Full text

Abstract:

Synthesis of a composite ion exchange material Tin (IV) tungstoselenate - 1, 10 phenanthroline has been achieved by mixing differentvolume ratios of the organic counterpart with the inorganic ion exchangertin (IV) tungstoselenate. Final sample, having 0.88mmoles of 1, 10 phenanthroline per gram of inorganic ion exchanger, was chosen for characterization, including ion exchange capacity, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The ion exchange capacity of Li+, Na+, Ca2+, Sr2+ metals was determined by using the synthesized material. The adsorption behavior of Al3

APA, Harvard, Vancouver, ISO, and other styles

21

Choi, Nag-Choul, Kang-Hee Cho, Min-Sung Kim, Seong-Jik Park, and Chang-Gu Lee. "A Hybrid Ion-Exchange Fabric/Ceramic Membrane System to Remove As(V), Zn(II), and Turbidity from Wastewater." Applied Sciences 10, no. 7 (2020): 2414. http://dx.doi.org/10.3390/app10072414.

Full text

Abstract:

Ceramic membranes and ion exchangers are effective at removing turbidity and ionic contaminants from water, respectively. In this study, we demonstrate the performance of a hybrid ion-exchange fabric/ceramic membrane system to treat metal ions and turbidity at the same time in synthetic wastewater. The removal rate of As(V) and Zn(II) by the ceramic membrane increased with solution pH, while turbidity was completely removed regardless of the solution pH. The main reaction of As(V) removal was adsorption at solution pH 6 and precipitation at solution pH 8, whereas phase-change was the predomina

APA, Harvard, Vancouver, ISO, and other styles

22

Chen, Mengzhu, Fang Wu, Linwen Yu, Yuxin Cai, Hang Chen, and Mingtao Zhang. "Chloride binding capacity of LDHs with various divalent cations and divalent to trivalent cation ratios in different solutions." CrystEngComm 21, no. 44 (2019): 6790–800. http://dx.doi.org/10.1039/c9ce01322a.

Full text

Abstract:

Chlorides were bonded by LDHs due to ion exchange and surface adsorption. Carbonation resulted in the debonding of the chloride bond by ion exchange, however, surface adsorption was not affected by carbonation.

APA, Harvard, Vancouver, ISO, and other styles

23

Li, Heng. "Synthesis of Li_0.6Zn_1.2PO₄ and its Selectivity to Li⁺ Exchange." Advanced Materials Research 442 (January 2012): 54–57. http://dx.doi.org/10.4028/www.scientific.net/amr.442.54.

Full text

Abstract:

The ion-exchanger Li0.6Zn1.2PO4of spinel type was prepared by a solid state reaction crystallization method. The extraction/insertion reaction with this material was investigated by X-ray, saturation capacity of exchange, and Kd measurement. The experimental results have proved that the acid-treated sample has a capacity of exchange 2.4mmol•g-1for Li+in the solution, The chemical analysis showed that the Li+extraction/insertion progressed mainly by ion-exchange mechanism and surface adsorption.

APA, Harvard, Vancouver, ISO, and other styles

24

Fathima, Syeed Zeeshaan, and Altaf Hussain Pandith. "Synthesis and Characterization of Zirconium-Resorcinol Phosphate; A New Hybrid Cation Exchanger and Dye Adsorbent for Water Treatment." Materials Science Forum 842 (February 2016): 196–208. http://dx.doi.org/10.4028/www.scientific.net/msf.842.196.

Full text

Abstract:

Synthesis and characterization of a new hybrid ion exchange material Zirconiumresorcinol Phosphate (ZrRP) is reported in this study. Synthetic conditions such as reactant concentrations and mixing volume ratio were varied to optimize the ion exchange properties of this material. The material has Na+ ion exchange capacity equal to 1.7 meq/g (dry). X-ray diffraction spectra suggest that it is amorphous in nature. This ion-exchanger was also characterization by SEM, IR and TGA-DTG. Various studies such as determination of ion exchange capacity, elution behaviour and pH titration has been performe

APA, Harvard, Vancouver, ISO, and other styles

25

Abuilaiwi, Faraj A., Muataz Ali Atieh, Mansor B. Ahmad, Nor Azowa Ibrahim, Mohamad Zaki Ab Rahman, and Wan Md Zin Wan Yunus. "Preparation and Characterization of Polyamidoxime Chelating Resin from Rubberwood Fibre-G-Polyacrylonitrile." Adsorption Science & Technology 27, no. 7 (2009): 661–70. http://dx.doi.org/10.1260/0263-6174.27.7.661.

Full text

Abstract:

Grafted rubberwood fibre was converted to polyamidoxime ion-exchange resin in order to remove heavy metal ions from aqueous solution. The cation-exchange resin existed predominantly in the syn-hydroxyamino form. The water uptake by the resin was ca. 31 g/g dry resin while its hydrogen ion capacity was 3.6 mmol/g. The adsorption capacity of the resin towards different metal ions from wastewater was determined at different pH values within the range 1–6. The prepared chelating ion-exchanger exhibited the highest adsorption capacity towards Cu2+ ions (3.83 mmol/g), followed by Cd2+, Fe3+, Pb2+, N

APA, Harvard, Vancouver, ISO, and other styles

26

Trung, Nguyen Dinh, Le Thi Ha Lan, and Truong Dong Phuong. "Investigate the adsorption of cesium ion (Cs+) on Zn2[Fe(CN)6] AND Zn3[Fe(CN)6]2 nanoparticles." Science and Technology Development Journal - Natural Sciences 3, no. 4 (2020): 307–16. http://dx.doi.org/10.32508/stdjns.v3i4.524.

Full text

Abstract:

Adsorption of Cs+ ion from aqueous solution by Zn2[Fe(CN)6] and Zn3[Fe(CN)6]2 nanoparticle, and the effect of experimental conditions on the adsorption were investigated. Preliminary results showed that two materials were very efficient as an absorbent. Zn2[Fe(CN)6] and Zn3[Fe(CN)6]2 nanoparticle adsorbents for removal Cs+ion from solution have been successfully synthesized. Comparison between two materials, the Cs + ion adsorption capacity of Zn2[Fe(CN)6] was higher than Zn3[Fe(CN)6]2 and the reaction time was shorter. The adsorption equilibrium time of Zn3[Fe(CN)6]2 was about 20 hours, and t

APA, Harvard, Vancouver, ISO, and other styles

27

Jin, Lan Shu, Xue Feng Chu, Guo Lin Lin, and Bo Ying. "Removal of Trivalent Chromium ION in Wastewater by Zeolite 4a." Advanced Materials Research 383-390 (November 2011): 6091–96. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6091.

Full text

Abstract:

Under the static condition, researching zeolite 4A to the chromium ion's adsorption characteristic, discussing the influence of different adsorption factors. The results indicated that: When the wastewater temperature was 30°C, at pH 3-4,adsorbed 30min,dosing 3g/L of zeolite 4A adsorption chromic wastewater(100mg/L), the chromium ion elimination rate may reached above 99%. At the same time, the zeolite 4A conforms to Langmuir and the Freundlich isotherm to the chromium ion's adsorption, the correlation coefficient respectively was 0.9997 and 0.9753, obtained the zeolite 4A to the chromium ion

APA, Harvard, Vancouver, ISO, and other styles

28

Li, Heng. "Synthesis of Al_0.6667Ti(PO₄)₂ and its Selectivity to Li⁺Exchange." Advanced Materials Research 459 (January 2012): 141–44. http://dx.doi.org/10.4028/www.scientific.net/amr.459.141.

Full text

Abstract:

The ion-exchanger Al0.6667Ti(PO4)2of spinel type was prepared by means of the solid state reaction crystallization method. The extraction/insertion reaction with this material was investigated by X-ray, saturation capacity of exchange, and Kd measurement. The experimental results have proved that the acid-treated sample has a capacity of exchange 3.9mmol·g-1 for Li+in the solution, The chemical analysis showed that the Li+extraction/insertion progressed mainly by ion-exchange mechanism and surface adsorption.

APA, Harvard, Vancouver, ISO, and other styles

29

Shanmugavalli, R., P. S. Syed Shabudeen, R. Venckatesh, K. Kadirvelu, S. Madhavakrishnan, and S. Pattabhi. "Uptake of Pb(II) ion From Aqueous Solution Using Silk Cotton Hull Carbon: An Agricultural Waste Biomass." E-Journal of Chemistry 3, no. 4 (2006): 218–29. http://dx.doi.org/10.1155/2006/496309.

Full text

Abstract:

Activated carbon prepared from silk cotton hull (SCH) was used for the adsorptive removal of Pb(II) ion from aqueous solution. The raw material used for the preparation of activated carbon is the waste of agricultural product; the production of this carbon is expected to be economically feasible. Parameters such as agitation time, metal ion concentration, adsorbent dose,pH and Particle size were studied. Adsorption equilibrium was reached within 80 min for 10, 20, 30 and 40mg/l of Pb(II) ion with 50mg of carbon per mL of solution. Adsorption parameters were determined using both Langmuir and F

APA, Harvard, Vancouver, ISO, and other styles

30

Zhang, Jie Bing, Xiao Li Zhang, Hong Ya Li, Bin Xia Zhao, and Zhu Xiong. "Concentration of Miglitol on Adsorption Effect of Equilibrium and Kinetics." Advanced Materials Research 236-238 (May 2011): 899–902. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.899.

Full text

Abstract:

Concentrations of miglitol on the adsorptive capacity effect of resin were investigated.The pseudo first and second order equations were used to describe the kinetic process of ion exchange. The results showed that adsorption of miglitol onto resin is fast and can reach approximate equilibrium after 2.5h. Langmuir model is suitable to describe the equilibrium adsorption.By linear fit of the pseudo first and second order equation and comparing the R2value of correlation coefficient, it finds that the R2value of the pseudo second order equation is bigger, and concludes that the ion exchange proc

APA, Harvard, Vancouver, ISO, and other styles

31

Khan, Muhammad Imran, Abdallah Shanableh, Javier Fernandez, et al. "Synthesis of DMEA-Grafted Anion Exchange Membrane for Adsorptive Discharge of Methyl Orange from Wastewaters." Membranes 11, no. 3 (2021): 166. http://dx.doi.org/10.3390/membranes11030166.

Full text

Abstract:

This manuscript describes the synthesis of dimethylethanolamine (DMEA)-grafted anion exchange membrane (AEM) by incorporating dimethylethanolamine as ion-exchange content into the polymer matrix via the solution casting method. The synthesis of the DMEA-grafted AEM was demonstrated by Fourier transform infrared (FTIR) spectroscopy. The prepared DMEA-grafted AEM exhibited higher thermal stability, homogeneous morphology, water uptake (WR) of 115%, and an ion exchange capacity (IEC) of 2.70 meq/g. It was used for the adsorptive removal of methyl orange (MO) from an aqueous solution via batch pro

APA, Harvard, Vancouver, ISO, and other styles

32

Wan, Lin Sheng, Shu Sheng Yang, Ling Chen, Hong Chao Li, Li Sun, and Dan Dan Gong. "The Influence of Electrolyte Heterogeneous Phenomenon on Tungsten Ion Exchange." Advanced Materials Research 524-527 (May 2012): 1956–60. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1956.

Full text

Abstract:

This paper studies electrolyte heterogeneous phenomenon and its influence on tungsten ion exchange.It shows that the homogeneous change of WO42- and Clˉmake WO42- positive adsorption of exchange capacity reduced, but reverse adsorption exchange capacity increased;Improve the WO42- solution concentration, increasing the resin layer height, and reducing the ion exchange speed, will strengthen the heterogeneous of features.Low-speed of the positive desorption can increase desorbing agent solution concentration、reduce the dosage of desorbing agent.

APA, Harvard, Vancouver, ISO, and other styles

33

Fettig, Joachim. "Removal of Humic Substances by Adsorption/Ion Exchange." Water Science and Technology 40, no. 9 (1999): 173–82. http://dx.doi.org/10.2166/wst.1999.0470.

Full text

Abstract:

This paper gives an overview over the ability of four different sorbent media, activated carbon, anion exchange resins, carbonaceous resins and metal oxides, for the removal of humic sustances. Both sorbent characteristics and solution parameters that affect the ultimate capacities are discussed, and approaches developed in order to describe sorption equilibria and rate of uptake are reported. In addition, successes and failures of predictive models are described. Some general conclusions about favorable conditions for the removal of humic substances by sorption processes are given.

APA, Harvard, Vancouver, ISO, and other styles

34

KAWABATA, Nariyoshi. "Ion Exchange and Related Adsorption of Organic Pollutants." Journal of Ion Exchange 7, no. 1 (1996): 28–36. http://dx.doi.org/10.5182/jaie.7.28.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Natareev, S. V. "Ion exchange adsorption in countercurrent perforated-plate columns." Theoretical Foundations of Chemical Engineering 41, no. 4 (2007): 362–70. http://dx.doi.org/10.1134/s0040579507040057.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Velayudhan, Ajoy, and Csaba Horváth. "Adsorption and ion-exchange isotherms in preparative chromatography." Journal of Chromatography A 663, no. 1 (1994): 1–10. http://dx.doi.org/10.1016/0021-9673(94)80490-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Groenendijk, Dirk J., and Johannes N. M. van Wunnik. "Surfactant Adsorption and Ion Exchange on Calcite Surfaces." Energy & Fuels 35, no. 10 (2021): 8763–72. http://dx.doi.org/10.1021/acs.energyfuels.1c00670.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Palanisamy, P. N., A. Agalya, and P. Sivakumar. "Polymer Composite—A Potential Biomaterial for the Removal of Reactive Dye." E-Journal of Chemistry 9, no. 4 (2012): 1823–34. http://dx.doi.org/10.1155/2012/518581.

Full text

Abstract:

Poly Pyrrle saw dust composite was prepared by reinforcement of natural wood saw dust (obtained fromEuphorbia Tirucalli Lwood) and Poly Pyrrole matrix phase. The present study investigates the adsorption behaviour of Poly Pyrrole Saw dust Composite towards reactive dye. The batch adsorption studies were carried out by varying solution pH, initial dye concentration, contact time and temperature. The kinetic study showed that adsorption of Reactive Red by PPC was best represented by pseudo-second order kinetics with ion exchange adsorption. The equilibrium data were analyzed by Freundlich and La

APA, Harvard, Vancouver, ISO, and other styles

39

Jian, Yan Qiang, Ming Yu Li, and Qing Xuan Zeng. "Thermodynamics of Cr(VI) Adsorption on Thiourea Chelating Ion Exchange Fiber." Advanced Materials Research 894 (February 2014): 121–24. http://dx.doi.org/10.4028/www.scientific.net/amr.894.121.

Full text

Abstract:

A chelating ion exchange fiber containing thioureido groups for the removal of Cr (VI) has been prepared from chloramethylated styrene grafted polypropylene fiber (2.96 mmol/g Cl) reacted with thiourea, batch adsorption experiments are adopted to investigate its adsorption equilibrium properties, Adsorption isotherms at various temperatures were obtained. Langmuir linear equation model can well describe the adsorption equilibrium data suggesting that the adsorption process involves both chemisorption and physisorption. The values of thermodynamic parameters, including ΔH, ΔGand ΔS, indicate th

APA, Harvard, Vancouver, ISO, and other styles

40

Suppapruek, Matcharee, Poonsub Threepopnatkul, Amnard Sittattrakul, and Wanchai Lerdwijitjarud. "Effect of Chelating Agents on Removal of Heavy Metal Cations of Cellulose-based Ion Exchange Resins from Water Hyacinth." E3S Web of Conferences 302 (2021): 02020. http://dx.doi.org/10.1051/e3sconf/202130202020.

Full text

Abstract:

Presently, heavy metal pollution in natural water resources is considered very hazardous. The purpose of this research is to develop the novel cellulose-based ion exchange resins from water hyacinth and the effect of chelating agents on the removal of heavy metal cations from single-metal aqueous solutions has been investigated. Cellulose was prepared from the stem of water hyacinth by alkaline treatment process then cellulose-based ion exchange resins were prepared via esterification reaction between cellulose with two different chelating agents such as pyromellitic dianhydride and 3,3’,4,4’-

APA, Harvard, Vancouver, ISO, and other styles

41

Wada, Shin-Ichiro, and Kouya Kawabata. "Ion adsorption on variable charge materials and thermodynamics of ion exchange." Soil Science and Plant Nutrition 37, no. 2 (1991): 191–200. http://dx.doi.org/10.1080/00380768.1991.10415029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Wang, Cheng-Chien, Chia-Yuan Chang, and Chuh-Yung Chen. "Study on Metal Ion Adsorption of Bifunctional Chelating/Ion-Exchange Resins." Macromolecular Chemistry and Physics 202, no. 6 (2001): 882–90. http://dx.doi.org/10.1002/1521-3935(20010301)202:6<882::aid-macp882>3.0.co;2-k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Ahn, Dong June, and Elias I. Franses. "Ion adsorption and ion exchange in ultrathin films of fatty acids." AIChE Journal 40, no. 6 (1994): 1046–54. http://dx.doi.org/10.1002/aic.690400615.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Inglezakis, Vassilis J., and Antonis A. Zorpas. "Heat of adsorption, adsorption energy and activation energy in adsorption and ion exchange systems." DESALINATION AND WATER TREATMENT 39 (2012): 149–57. http://dx.doi.org/10.5004/dwt.2012.3000.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Inglezakis, Vassilis J., and Antonis A. Zorpas. "Heat of adsorption, adsorption energy and activation energy in adsorption and ion exchange systems." Desalination and Water Treatment 39, no. 1-3 (2012): 149–57. http://dx.doi.org/10.1080/19443994.2012.669169.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Dinh Trung, Nguyen, Le Thi Ha Lan, Nguyen Thi My Ngoc, and Nguyen An Son. "Investigating the adsorption of cesiun ion (Cs+) on cobalt hexacyanoferrate coated magnetite nanoparticles." Science and Technology Development Journal - Natural Sciences 2, no. 6 (2020): 192–200. http://dx.doi.org/10.32508/stdjns.v2i6.882.

Full text

Abstract:

Co2[Fe(CN)6]/Fe3O4 nanoparticle adsorbent for ion cesium (Cs+) sorption was prepared by a chemical co-precipitation method. The magnetization of the materials makes them to be separated easyly from an aqueous solution by an external magnetic field. The ion Cs+ absorption by Co2[Fe(CN)6]/Fe3O4 nanoparticle follow the ion exchange mechanism, ion exchange capacity depends on the pH, the maximum ion exchange capacity of the material at pH = 4 is 0.40 meq (Cs+)/ g. After 15 min, about 98% of initial ion Cs+ concentration was removed from the solution, the adsorption could be described by Langmuir a

APA, Harvard, Vancouver, ISO, and other styles

47

Cheng, X., Y. Wang, Z. Sun, D. Sun, and A. Wang. "Pathways of phosphate uptake from aqueous solution by ZnAl layered double hydroxides." Water Science and Technology 67, no. 8 (2013): 1757–63. http://dx.doi.org/10.2166/wst.2013.049.

Full text

Abstract:

ZnAl layered double hydroxides (LDHs) were prepared by urea hydrolysis-based coprecipitation for removing phosphate from aqueous solutions. The chemical formula of the product was determined as Zn5.54Al3.02(OH)8.73(CO3)0.57Cl5.66·7.84H2O. Chloride ion was the major interlayer anion of the ZnAl LDHs. Adsorption of phosphate onto the ZnAl sorbent over the entire study period was not in close agreement with pseudo-first-order or pseudo-second-order models. The adsorption can be divided into two steps. A fast adsorption was observed during the first 10 h with a marked increase in the concentration

APA, Harvard, Vancouver, ISO, and other styles

48

Sun, Lin, Ananya Srinivas, and Ron C. Runnebaum. "Understanding the Impact of Key Wine Components on the Use of a Non-Swelling Ion-Exchange Resin for Wine Protein Fining Treatment." Molecules 26, no. 13 (2021): 3905. http://dx.doi.org/10.3390/molecules26133905.

Full text

Abstract:

The impact of key classes of compounds found in wine on protein removal by the ion-exchange resin, Macro-Prep® High S, was examined by adsorption isotherm experiments. A model wine system, which contained a prototypical protein Bovine Serum Albumin (BSA), was used. We systematically changed concentrations of individual chemical components to generate and compare adsorption isotherm plots and to quantify adsorption affinity or capacity parameters of Macro-Prep® High S ion-exchange resin. The pH (hydronium ion concentration), ethanol concentration, and prototypical phenolics and polysaccharide c

APA, Harvard, Vancouver, ISO, and other styles

49

Bowes, Brian D., Harun Koku, Kirk J. Czymmek, and Abraham M. Lenhoff. "Protein adsorption and transport in dextran-modified ion-exchange media. I: Adsorption." Journal of Chromatography A 1216, no. 45 (2009): 7774–84. http://dx.doi.org/10.1016/j.chroma.2009.09.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Yao, Hui Min, Jun Yi Zhu, and Guang Qing Xia. "The Drug Loading Thermodynamics Mechanism of Eight Cationic Drugs’ Adsorption onto Ion Exchange Fiber." Advanced Materials Research 901 (February 2014): 41–44. http://dx.doi.org/10.4028/www.scientific.net/amr.901.41.

Full text

Abstract:

The adsorption of eight drugs (Log P range from-2.64~8.98) was investigated by performing batch adsorption experiments. Experiments were carried out as function of contact time, initial concentration and temperature (25-60°C). The equilibrium adsorption data of drugs on ion-exchange fiber were analyzed by Langmuir and Freundlich models. The results indicate that the Langmuir model provides the best correlation of the experimental data. The results indicate that ion-exchange fiber is suitable as drug carriers for loading drugs.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!