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Journal articles on the topic 'Clay Absorption and adsorption'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 January 2023

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1

Lu, Haijun, Qian Zhang, Yiqie Dong, Jixiang Li, and Xiong Zhang. "The Adsorption Capacity, Pore Structure, and Thermal Behavior of the Modified Clay Containing SSA." Advances in Materials Science and Engineering 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/9894657.

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Sewage sludge ash (SSA) was created by burning municipal sludge. The potential of clay containing 1 or 3 or 5% SSA was assessed for use as a landfill liner-soil material. Batch adsorption, low temperature N2adsorption, and TG-DTA tests were performed to evaluate the adsorption capacity, micropore structure, thermostability, and components of soils under Cr(VI) and Pb(II) chemical solutions. With the increasing amount of SSA in modified clay, the adsorption capacity of Cr(VI) and Pb(II) to the modified clay increases gradually. After absorption, the pore size of modified clay ranges from 2 nm t

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Novitasari, Sholihah, Sriatun Sriatun, and Taslimah Taslimah. "Aluminum Pillared Clay (Al-PILC) for Adsorption of Dyes in Red Fruit Oil." Jurnal Kimia Sains dan Aplikasi 24, no. 1 (February 8, 2021): 9–14. http://dx.doi.org/10.14710/jksa.24.1.9-14.

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Red fruit oil contains carotene, which is dark orange, so it is not very popular. Therefore, it is necessary to reduce the intensity of the color. Yesterday, in this study, the synthesis and characterization of Al-pillared clay (Al-PILC) from light and heavy clay fractions were carried out. The absorption capacity of red fruit carotene dyes was studied. The research stages included preparation, fractionation, activation, pillarization of clay with aluminum, characterization, and adsorption test for carotene dyes on red fruit. Characterization was carried out using X-ray Diffractometer (XRD) an

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3

Xu, Hui, Dong Hong Guo, and Yao Xu. "Removal of Cu(II) Ions from Aqueous Solution by KH-570 Modified Attapulgite Clay." Advanced Materials Research 320 (August 2011): 275–79. http://dx.doi.org/10.4028/www.scientific.net/amr.320.275.

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Attapulgite clay (ATP) was modified by Silane coupling agent (KH-570) to creat more efficient sites for Cu(II) adsorption. The natural and KH-570 modified attapulgite clay were characterized by Fourier transform infrared spectrometer (FTIR) and SEM. The effects of various experimental parameters such as the amount of modifier, the quality of KH-570 modified ATP, adsorption time, adsorption temperature on Cu(II) adsorption onto KH-570modified ATP were studied in detail. The results showed that the 30% of modifier (The quality of the modifier mass fraction attapulgite) had the best adsorption ca

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Wang, Hongyan, Shangwen Zhou, Jiehui Zhang, Ziqi Feng, Pengfei Jiao, Leifu Zhang, and Qin Zhang. "Clarifying the Effect of Clay Minerals on Methane Adsorption Capacity of Marine Shales in Sichuan Basin, China." Energies 14, no. 20 (October 19, 2021): 6836. http://dx.doi.org/10.3390/en14206836.

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The effect of clay minerals on the methane adsorption capacity of shales is a basic issue that needs to be clarified and is of great significance for understanding the adsorption characteristics and mechanisms of shale gas. In this study, a variety of experimental methods, including XRD, LTNA, HPMA experiments, were conducted on 82 marine shale samples from the Wufeng–Longmaxi Formation of 10 evaluation wells in the southern Sichuan Basin of China. The controlling factors of adsorption capacities were determined through a correlation analysis with pore characteristics and mineral composition.

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5

Yermiyahu, Z., I. Lapides, and S. Yariv. "Visible absorption spectroscopy study of the adsorption of Congo Red by montmorillonite." Clay Minerals 38, no. 4 (December 2003): 483–500. http://dx.doi.org/10.1180/0009855033840110.

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AbstractThe adsorption of the anionic dye Congo Red (CR) by Na-, Cs-, Mg-, Cu-, Al- and Fe-montmorillonite was investigated by electronic spectroscopy. Spectra of the aqueous suspensions of different clay concentrations and different loadings were recorded. The spectra were curve fitted and were compared to spectra of aqueous solutions of CR at different pH values. Four bands representing anionic varieties and two representing protonated varieties of CR were identified in spectra of CR-treated Na-, Cs-, Mg-, Cu- and Al-montmorillonite. Spectra of CR-treated Femontmorillonite were slightly diff

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6

Jasmin Shah, Jasmin Shah, Muhammad Rasul Jan Muhammad Rasul Jan, Mian Muhammad Mian Muhammad, and Behisht Ara and Changeez Ahmad Behisht Ara and Changeez Ahmad. "Organo-Clay as Adsorbent for Removal of Fenoxaprop-p-ethyl from Water Samples; A Statistical Approach." Journal of the chemical society of pakistan 43, no. 3 (2021): 278. http://dx.doi.org/10.52568/000575/jcsp/43.03.2021.

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In this study, fuller’s earth (FE) modified with sodium dodecylbenzene sulphonic acid was used for adsorptive removal of fenoxaprop-p-ethyl (FPE) herbicide from water samples and statistical validation of the experimental observations was accomplished. All the adsorption experiments were conducted in batch mode. The effect of pH, agitation time, adsorbent dose and initial herbicide concentration on adsorption process was studied. About 98.5% adsorption efficiency was achieved at initial analyte concentration of 1000 mg L-1 at pH 6 within 60 min at adsorbent dose of 0.1 g. The adsorption kineti

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7

Jasmin Shah, Jasmin Shah, Muhammad Rasul Jan Muhammad Rasul Jan, Mian Muhammad Mian Muhammad, and Behisht Ara and Changeez Ahmad Behisht Ara and Changeez Ahmad. "Organo-Clay as Adsorbent for Removal of Fenoxaprop-p-ethyl from Water Samples; A Statistical Approach." Journal of the chemical society of pakistan 43, no. 3 (2021): 278. http://dx.doi.org/10.52568/000575.

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In this study, fuller’s earth (FE) modified with sodium dodecylbenzene sulphonic acid was used for adsorptive removal of fenoxaprop-p-ethyl (FPE) herbicide from water samples and statistical validation of the experimental observations was accomplished. All the adsorption experiments were conducted in batch mode. The effect of pH, agitation time, adsorbent dose and initial herbicide concentration on adsorption process was studied. About 98.5% adsorption efficiency was achieved at initial analyte concentration of 1000 mg L-1 at pH 6 within 60 min at adsorbent dose of 0.1 g. The adsorption kineti

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8

Hoving, Alwina L., Melanie A. Münch, Christophe Bruggeman, Dipanjan Banerjee, and Thilo Behrends. "Kinetics of selenite interactions with Boom Clay: adsorption–reduction interplay." Geological Society, London, Special Publications 482, no. 1 (2019): 225–39. http://dx.doi.org/10.1144/sp482-2018-60.

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AbstractThe speciation of selenium (Se) in clay-rich host rocks is important within the framework of geological disposal of radioactive waste since it affects its migration. Removal of selenite from formation water can be caused by reduction and adsorption. Reduction could potentially be inhibited or delayed by adsorption. Here, the interplay of adsorption and reduction of selenite was investigated in batch experiments with Boom Clay and its separated size fractions. In all experiments, dissolved Se concentrations (Seaq) showed a fast initial decrease that was followed by a slower decline unti

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9

Râpă, Maria, Anca Andreea Ţurcanu, Ecaterina Matei, Andra Mihaela Predescu, Mircea Cristian Pantilimon, George Coman, and Cristian Predescu. "Adsorption of Copper (II) from Aqueous Solutions with Alginate/Clay Hybrid Materials." Materials 14, no. 23 (November 25, 2021): 7187. http://dx.doi.org/10.3390/ma14237187.

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Massive amounts of industrial and agricultural water around the world are polluted by various types of contaminants that harm the environment and affect human health. Alginic acid is a very versatile green polymer used for heavy metal adsorption due to its availability, biocompatibility, low cost, and non-toxic characteristics. The aim of this paper was to prepare new low-cost hybrid composite beads using sodium alginate with treated montmorillonite and kaolin for the adsorption of copper (Cu) cations. Modified and unmodified clays were investigated by studying their morphology and elemental c

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10

Sasria, Nia, Aprina Dewi Rizki, and Gusti Umindya Nur Tajalla. "Removal of Lead Ions (Pb<sup>2+</sup>) Using Acid-Activated Clay from East Kalimantan." Materials Science Forum 1076 (December 8, 2022): 91–100. http://dx.doi.org/10.4028/p-es4k1t.

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This study aims to determine the optimal conditions of acid-activated clay adsorbent in adsorption of Pb2+ metal ions. Clay was taken around East Kalimantan, Karang Joang. This adsorbent was prepared by mixing clay into a solution of KMnO4, H2SO4 and HCl successively, and stirred for 4 hours at a temperature of 80°C. The morphology and active groups of the adsorbent were analyzed using BET and FTIR. The variables of this study were the mass of the adsorbent 0.1, 0.3 and 0.5 grams and the contact time of 5, 30 and 55 minutes. Adsorption capacity of this adsorbent was analyzed using Atomic Absor

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11

Aisa, C., R. A. Alvarez-Puebla, J. Blasco, J. C. Echeverría, and J. J. Garrido. "Combining DLS, XRD, SEM-EDAX and EXAFS in the study of Zn(II) retention on a palygorskitic clay." Clay Minerals 40, no. 2 (June 2005): 205–12. http://dx.doi.org/10.1180/0009855054020166.

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AbstractClay materials play a key role in determining the retention capacity of a soil, and are widely used in waste treatments. One of the most commonly used clays is palygorskite. The aim of this research is to determine the chemical species formed by Zn when retained in a palygorskitic clay material. Adsorption isotherm analysis is useful in studying the retention process, because it provides a macroscopic view of the retention phenomena. Complementary techniques are needed in order to study the different retention processes. Sorption isotherms of Zn on palygorskitic clay were carried out;

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12

Kim, Hyesu, Jaehyung Yu, Lei Wang, Yongsik Jeong, and Jieun Kim. "Variations in Spectral Signals of Heavy Metal Contamination in Mine Soils Controlled by Mineral Assemblages." Remote Sensing 12, no. 20 (October 9, 2020): 3273. http://dx.doi.org/10.3390/rs12203273.

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This paper illustrates a spectroscopic analysis of heavy metal concentration in mine soils with the consideration of mineral assemblages originated by weathering and mineralization processes. The mine soils were classified into two groups based on the mineral composition: silicate clay mineral group (Group A) and silicate–carbonate–skarn–clay mineral group (Group B). Both soil groups are contaminated with Cu, Zn, As, and Pb, while the contamination level was higher for Group A. The two groups exhibit different geochemical behaviors with different heavy metal contamination. The spectral variati

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13

Mao, Cui Ping, and Shu Bin Wu. "Adsorption of Polyvinyl Acetate (PVAc) Adhesive Emulsion from Aqueous Solution by Lignin-Phenol Based Cationic Surfactant Modified Organic Kieselguhr." Applied Mechanics and Materials 472 (January 2014): 861–66. http://dx.doi.org/10.4028/www.scientific.net/amm.472.861.

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The kieselguhr was modified by the lignin-based cationic surfactant which obtained from the Mannich reaction. Modified organic kieselguhr exhibited favorable adsorption to adhesive and fine colloidal substance. Dissolved and colloidal substances (DCS) appeared in the secondary fibre reuse process interfered the pulping and papermaking seriously. The organic clay could remove the stickies substances through adsorption approach technically. In this paper, PVAc was chosen as the simulacrum of stickies because of its wide application as the adhesives in wood, textile, paint, paper processing and o

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14

Smail, Heman A., Kafia M. Shareef, and Zainab H. Ramli. "An Eco-Friendly Process for Removal of Lead from Aqueous Solution." Modern Applied Science 11, no. 5 (April 8, 2017): 47. http://dx.doi.org/10.5539/mas.v11n5p47.

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The adsorption of lead (Pb II) ion on different types of synthesized zeolite was investigated. The BET surface area, total pore volume & average pore size distribution of these synthesized zeolites were determined by adsorption isotherms for N2, the surface area & total pore volume of their sources were found by adsorption isothermN2.The adsorption equilibrium was measured after 24h at room temperature (RT) & concentration 10mg.L-1 of Pb (II) was used. The adsorption of heavy metal Pb (II) on four different prepared zeolites (LTA from Montmorillonite clay, FAU(Y)-B.H (G2) from Barl

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15

Kaewtabut, Yutthana, Wansika Sirimongkol, Adisak Thueploy, and Siriphan Nilpairach. "Utilization of Rice Husk Ash and Waste Sludge from Cutting Glass Manufacturing with Angthong Pottery." Key Engineering Materials 608 (April 2014): 103–7. http://dx.doi.org/10.4028/www.scientific.net/kem.608.103.

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Efficiently utilization of rice husk ash (RHA) and waste sludge from cutting glass manufacturer (WSG) as additives to pottery clay would yield positive economic impacts, such as more friendly industrial ecosystems. In this study, The RHA and WSH were used as additives to Angthong pottery clay (APC) and casting and fired properties were examined. Two sets of sample with a mixture consisting of 60% APC, 20% RHA, and 20% WSG (CRG formula) and non-added clay (C100 formula) were prepared by slip casting technique. Samples were fired at temperature 900 °C and 1100°C; then the viscosity of slurry, li

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16

Nishina, Haruka, Shota Hoshino, Yuta Ohtani, Tamao Ishida, Tetsuya Shimada, and Shinsuke Takagi. "Anisotropic energy transfer in a clay–porphyrin layered system with environment-responsiveness." Physical Chemistry Chemical Physics 22, no. 25 (2020): 14261–67. http://dx.doi.org/10.1039/d0cp02263b.

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The adsorption orientation behavior of tetrakis(1-methylpyridinium-3-yl)porphyrin (m-TMPyP) and p-TMPyP on the clay monolayer prepared by the Langmuir Blodgett (LB) technique was investigated using the absorption and dichroic spectra obtained on a waveguide.

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17

Hirade, Yugo, Tamao Ishida, Tetsuya Shimada, and Shinsuke Takagi. "Adsorption and absorption behavior of cationic porphyrin on titania and clay nanosheets." Colloids and Surfaces A: Physicochemical and Engineering Aspects 624 (September 2021): 126747. http://dx.doi.org/10.1016/j.colsurfa.2021.126747.

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18

Li, Ding Long, Jing Si Tian, Hou Hu Zhang, Yi Min Zhang, and Yue Xiang Gao. "Kinetic Study on Phosphorus Adsorption, Phosphorus Desorption, Nitrification, and Denitrification by Using Mineralized Refuse." Advanced Materials Research 340 (September 2011): 461–66. http://dx.doi.org/10.4028/www.scientific.net/amr.340.461.

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The mineralized refuse has a well particle size distribution and is similar asirregularly polyhedron with the high contents of Fe, Al, and Ca, which might be thephosphorus pool. The absorption and desorption of phosphorus, nitrification, and denitrification in the mineralized refuse and clay has been investigated by using batch incubation, respectively. The variation of phosphorous adsorption in the mineralized refuse and clay is fitted the Langmuir isotherm equation. The maximum phosphorus adsorption capacity in the mineralized refuse calculated based on the Langmuir isotherm equation is 2914

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19

Nadziakiewicza, Kehoe, and Micek. "Physico-Chemical Properties of Clay Minerals and Their Use as a Health Promoting Feed Additive." Animals 9, no. 10 (September 23, 2019): 714. http://dx.doi.org/10.3390/ani9100714.

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The contamination of feeds with microbiological or toxicological agents can affect health, productivity and safety of livestock animals and their products. The treatment of feedstuffs to lower the content of undesired substances before feeding is expensive and labor intensive, therefore an alternative is to reduce their gastrointestinal absorption. Different feed additives are available, however the use of clays and clay minerals are ideal for this purpose due to their high specific surface area, adsorption capacity, low or null toxicity for the animal and low cost. A large number of clays ava

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20

Ogunmodede, O. T., O. L. Adebayo, and A. A. Ojo. "Enhancing Adsorption Capacity of Clay and Application in Dye Removal from Waste Water." International Letters of Chemistry, Physics and Astronomy 39 (October 2014): 35–51. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.39.35.

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Natural clay has been considered as a potential absorbent for removing pollutants from water and waste water. Nonetheless, the effective application of clay for water treatment is limited due to small surface area and presence of net negative surface charge, leading to it low adsorption capacity. The absorption capacity was boosted via intercalation of CaO derived from snail shell (SS). The methylene blue sorption potential, PZC, and the surface area of unmodified clay sample were substantially enhanced by the intercalation process. The process of sorption of MB from solution was analyzed usin

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Ogunmodede, O. T., O. L. Adebayo, and A. A. Ojo. "Enhancing Adsorption Capacity of Clay and Application in Dye Removal from Waste Water." International Letters of Chemistry, Physics and Astronomy 39 (October 2, 2014): 35–51. http://dx.doi.org/10.56431/p-8rzvmp.

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Natural clay has been considered as a potential absorbent for removing pollutants from water and waste water. Nonetheless, the effective application of clay for water treatment is limited due to small surface area and presence of net negative surface charge, leading to it low adsorption capacity. The absorption capacity was boosted via intercalation of CaO derived from snail shell (SS). The methylene blue sorption potential, PZC, and the surface area of unmodified clay sample were substantially enhanced by the intercalation process. The process of sorption of MB from solution was analyzed usin

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22

Márquez, Carmen Omaira, Víctor Julio García, Jefferson Raúl Guaypatin, Francisco Fernández-Martínez, and Anita Cecilia Ríos. "Cationic and Anionic Dye Adsorption on a Natural Clayey Composite." Applied Sciences 11, no. 11 (May 31, 2021): 5127. http://dx.doi.org/10.3390/app11115127.

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One of the main challenges for environmental sciences today is the effective treatment of dye-laden industrial effluents. This work aimed to study the potential of an untreated (natural occurring clayey composite) red clay (RC) for the adsorption of a cationic dye Basic Navy Blue 2RN (CNB) and anionic dye Drimaren Yellow CL-2R (ADY). We evaluated the effect of pH, dye concentration, and adsorbent concentration on the removal effectiveness to study the absorption process. Also, we studied the adsorption process by analyzing the feasibility of several known adsorption isotherms and kinetic model

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23

Shishkin, Andrei, Austris Laksa, Viktoria Shidlovska, Zane Timermane, Hakim Aguedal, Viktor Mironov, and Jurijs Ozolins. "Illite Clay Ceramic Hollow Sphere - Obtaining and Properties." Key Engineering Materials 721 (December 2016): 316–21. http://dx.doi.org/10.4028/www.scientific.net/kem.721.316.

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This work focuses on clay ceramic hollow spheres (CCHS) preparation using Liepa clay and sacrificial template method in a lab scale device and testing of their properties. Water retention and compression strength were investigated in order to found out if obtained CCHS can be used as an additive for improving soil resilience.The synthesis and characterization of CCHS using expanded polystyrene spheres (EPS) as sacrificial template is presented. CCHS were fired at five different temperatures and their compressive strength, water retention, bulk density, material density, water absorption, phase

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24

Chang, Po-Hsiang, Wei-Teh Jiang, Binoy Sarkar, Wendong Wang, and Zhaohui Li. "The Triple Mechanisms of Atenolol Adsorption on Ca-Montmorillonite: Implication in Pharmaceutical Wastewater Treatment." Materials 12, no. 18 (September 5, 2019): 2858. http://dx.doi.org/10.3390/ma12182858.

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The adsorption of atenolol (AT) from aqueous solutions by Ca-montmorillonite (SAz-2) was investigated in batch studies under different physicochemical conditions. The AT existed in neutral un-dissociated form at pH 10, and was adsorbed on dioctahedral smectite (SAz-2) obeying the Langmuir isotherm with a maximum adsorption capacity of 330 mmol/kg. The kinetic adsorption suggested that both strong and weak adsorption sites existed on SAz-2 and participated in the adsorption mechanisms. The amount of exchangeable cations desorbed from SAz-2 during AT adsorption was linearly correlated with the a

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25

Cosin, Shirley, Carolina A. Pinto, P. Souza Santos, and Francisco Rolando Valenzuela-Díaz. "Complex Carbon-Mineral Sorbents from Common Clay." Materials Science Forum 498-499 (November 2005): 734–39. http://dx.doi.org/10.4028/www.scientific.net/msf.498-499.734.

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Carbon/mineral complexes are materials with surfaces covered partially or totally by carbon materials contains. They have high industrial potential uses as material adsorbents and ceramic filters. The objective of this work is to evaluate the corrosion strength in acid and alkaline solutions, and the adsorption capacity of methylene blue of some materials prepared in the LMPSol. The compositions were prepared with an industrial common clay named “taguá” and organic and inorganic additives from industrial residues up to 50%. The corrosion test was performed in water at 60°C and in aqueous solut

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26

Garfinkel-Shweky, D., and S. Yariv. "Metachromasy in clay dye systems: the adsorption of acridine orange by Na-beidellite." Clay Minerals 34, no. 3 (September 1999): 459–67. http://dx.doi.org/10.1180/000985599546361.

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AbstractThe adsorption of the metachromic dye acridine orange (AO) by Na-beidellite was investigated by visible spectroscopy. Different types of clay-AO association were identified from the appearance and location of absorption bands α or β. The colloidal properties were determined from curves of the absorbance vs. the degree of saturation. Three regions were identified in the absorbance curve. In the first region beidellite is peptized with small amounts of AO and the dye penetrates into the interlayer space where it undergoes metachromasy due to π interactions between the aromatic entity and

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27

Aripin, H., S. Mitsudo, B. Rahmat, S. Tani, K. Sako, Y. Fujii, K. Kikuchi, T. Saito, T. Idehara, and S. Sabchevski. "Formation of porous clay ceramic using sago waste ash as a prospective additive material with controllable milling." Science of Sintering 46, no. 1 (2014): 55–64. http://dx.doi.org/10.2298/sos1401055a.

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A novel type of ceramic material was produced by mixing sago waste ash from the sago processing industry in Indonesia with clay. The composition was prepared by adding 50 %wt amount of sago waste into the clay, then a series of samples was milled for 6 h, 12 h, 24 h and 48 h, respectively. The samples were dry pressed and sintered at temperatures ranging from 800?C to 1200?C. The influence of the sintering temperature and the milling time on bulk density, firing shrinkage, water adsorption, and hardness was studied in detail. The results demonstrate that the low water absorption of less than 0

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Chen, Hai Feng, Pei Song Tang, Min Hong Xu, and Feng Cao. "Isotherms for Aqueous Potassium Adsorption and Characterization of Natural Pyrophyllite." Materials Science Forum 694 (July 2011): 682–85. http://dx.doi.org/10.4028/www.scientific.net/msf.694.682.

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The present investigatory founded an effectiveness of inexpensive and eco-friendly alumina silicate clay minerals, sericitic pyrophyllite (SP), as an adsorbent for the possible application in the absorption of K+. The crystal structure of pyrophyllite, size and morphology were characterized by XRD and SEM. In addition to pyrophyllite, quartz and were also contained in the minerals. The area of lamellar SP was about dozens um2. The results showed that potassium was absorbed on the SP under different pH and concentrations, and the best condition was pH=6, the time of equilibrium absorption = 30

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Dick, Jeffrey C., Abdul Shakoor, and Neil Wells. "A geological approach toward developing a mudrock-durability classification system." Canadian Geotechnical Journal 31, no. 1 (February 1, 1994): 17–27. http://dx.doi.org/10.1139/t94-003.

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Relationships between durability and lithologic characteristics of 61 mudrock samples from North America were investigated with the objective of developing a mudrock-durability classification based on lithologic characteristics. Second-cycle slake-durability index (Id2) was used as a measure of durability, whereas clay content, clay-mineral composition, texture, microfracture frequency, absorption, adsorption, dry density, void ratio, and Atterberg limits were used to characterize mudrock lithology. Based upon the amount of clay-size material, the presence or absence of laminations, and the de

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30

Habold, Caroline, François Reichardt, Yvon Le Maho, Fabielle Angel, Nicole Liewig, Jean-Hervé Lignot, and Hugues Oudart. "Clay ingestion enhances intestinal triacylglycerol hydrolysis and non-esterified fatty acid absorption." British Journal of Nutrition 102, no. 2 (January 13, 2009): 249–57. http://dx.doi.org/10.1017/s0007114508190274.

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Consumption by animals and humans of earthy materials such as clay is often related to gut pathologies. Our aim was to determine the impact of kaolinite ingestion on glucose and NEFA transport through the intestinal mucosa. The expression of hexose transporters (Na/glucose co-transporter 1 (SGLT1), GLUT2, GLUT5) and of proteins involved in NEFA absorption (fatty acid transporter/cluster of differentiation 36 (FAT/CD36), fatty acid transport protein 4 (FATP4) and liver fatty acid binding protein (L-FABP)) was measured (1) in rats whose jejunum was perfused with a solution of kaolinite, and (2)

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Ishak, Siti Nabihan, and Nik Ahmad Nizam Nik Malek. "Functionalized layered double hydroxide with compound to remove cationic and anionic pollutants: A review." Environmental and Toxicology Management 1, no. 1 (April 30, 2021): 26–29. http://dx.doi.org/10.33086/etm.v1i1.2062.

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Layered double hydroxide (LDH) is one of the promising clay minerals that show great potential in various applications owing to its versatile structural properties. Prominently known for its high anion exchange capacity, this allows LDH to be considered as one of the most effective adsorbents in removing anionic toxic. However, the structural property of LDH hinders it from removing cationic toxic. Therefore, LDH have been functionalized to enhance its adsorption properties. In the present work, we aim to summarize the recent progress of functionalized LDH with different compounds for removal

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32

Dzhigola, Lyudmila A., and Elizaveta A. Syutova. "Solid-phase concentration of calcium ions with mineral sorbents in creation of anti-icing materials." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 9-10 (October 22, 2018): 98–104. http://dx.doi.org/10.6060/ivkkt.20186109-10.5805a.

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The results of an experimental study of calcium ion adsorption processes carried out on various mineral sorbents of natural origin are presented. The sorption properties of the selected objects were studied and the possibility of their use as combined anti-icing materials was evaluated. In the work were investigated technological indicators of the quality of sorbents - the pH of the zero-charge point, the sorption capacity of sorbents and the optimum pH interval to determine the sorption activity of mineral raw materials on calcium ion. Analysis of the adsorption isotherms of calcium ions by t

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Sharma, Priyanka, and Kushal Qanungo. "Development of Mesoporous Geo-Adsorbent Pellets from Low Fire Clay and Cellulose for Removal of Methylene Blue in Aquaculture." Asian Journal of Chemistry 33, no. 10 (2021): 2306–12. http://dx.doi.org/10.14233/ajchem.2021.23322.

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Porous ceramic pellets have been prepared using low fire clay and cellulose as a pore forming agent. The pore size and BET analysis, water absorption capacity and compressive strength of the pellets have been determined. The methylene blue uptake of pellets increased on increasing the percentage of initial cellulose content. Batch mode studies showed that the methylene blue adsorption decreased with increasing dose of pellets, increased with increasing initial dye concentration, while solution pH and presence of co-ions had negligible effect on removal of methylene blue, making them suitable f

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Tapia Estévez, M. J., F. López Arbeloa, T. López Arbeloa, I. López Arbeloa, and R. A. Schoonheydt. "Spectroscopic Study of the Adsorption of Rhodamine 6G on Laponite B for Low Loadings." Clay Minerals 29, no. 1 (March 1994): 105–13. http://dx.doi.org/10.1180/claymin.1994.029.1.12.

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AbstractThe adsorption of Rhodamine 6G in aqueous suspension on Laponite B was investigated by electronic absorption and emission spectroscopies. Fluorescence spectra suggest that the monomer is adsorbed at two different surfaces, the external and the internal. A monomer is intercalated in the interlamellar space at low loading of dye (<3% CEC), whereas the monomeric state of the dye seems to be at the solid-aqueous interface in suspensions with high loading (>12% CEC). The metachromatic effect observed in the absorption spectra, for the loading interval between 1% and 15% CEC of Laponit

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Hatmoko, Dwi Rizaldi, Ari Handono Ramelan, and Pranoto Pranoto. "Economic Impacts on The Use of Zeolite, Claystone, and Active Charcoal in Reducing Levels of Mercury (Hg) in Waste from Unlicensed Gold Mining Activities (PETI) in Kapuas Sub Watershed, Ulak Jaya Sintang Village." International Journal of Multicultural and Multireligious Understanding 6, no. 5 (November 28, 2019): 919. http://dx.doi.org/10.18415/ijmmu.v6i5.1160.

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Research on the use of zeolite/clay/ activated charcoal composites as Hg heavy metal adsorbents has been carried out. Zeolites and clays were previously activated using NaOH, while activated charcoal was activated using HCl. The adsorbent characterization was carried out by Fourier Transform Infrared Analyzer (FTIR), X-Ray Diffraction (XRD), and mercury levels using Atomic Absorption Spectroscopy (AAS). Hg metal adsorption experiments were carried out by varying the composition of zeolite/claystone/ activated charcoal. The location of the study was Unlicensed Gold Mining (PETI) in the Kapuas w

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Chen, Wanying, Zhihong Li, Bo Hao, Jianchuan Gao, and Minqiang Fan. "A Machine Learning Based Intelligent Decision Support System for Flotation Dynamics in Simulation of Clay Minerals." Scientific Programming 2022 (March 23, 2022): 1–11. http://dx.doi.org/10.1155/2022/7893940.

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In coal mines, process management is related with planning and flow of coal minerals from their mining points to journey’s end. The process is dependent on the operational decisions, which should be completed during coal production. In these systems, simulation modelling is assumed a powerful tool for decision making. The simulation modelling can further be enhanced through applying artificial intelligence (AI) and machine learning (ML) methods. The communication of water with clay minerals upholds the water adsorption on the clay surface, which makes them complex systems. Therefore, evading t

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Chandler, Neil, John Palson, and Todd Burns. "Capillary rise experiment to assess effectiveness of an enzyme soil stabilizer." Canadian Geotechnical Journal 54, no. 10 (October 2017): 1509–17. http://dx.doi.org/10.1139/cgj-2016-0511.

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An experimental program to assess of the attributes of an enzyme soil stabilizer is described. The focus of the program was two 1 year capillary rise experiments designed to test the influence of the soil additive on the soil’s adsorption of water. The enzyme additive is typically applied to marginal clay-based soils to improve the performance of road subgrades. The study investigated the potential increase in shear strength and the reduction in swelling. The two long-term soil column tests were conducted to measure water absorption due to capillary rise for soil specimens with, and without, e

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Tang, Xiaodan, Hang Li, Hongyan Liu, Bing Li, Yuyan Zhao, Jilong Lu, Jian Zhou, and Qingqing Liu. "Comparative Study on Two Pretreatment Processes for Chemical Phase Analysis of Gold in Geological Samples by Atomic Absorption Spectrometry." Journal of Analytical Methods in Chemistry 2019 (July 10, 2019): 1–8. http://dx.doi.org/10.1155/2019/1792792.

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Sample pretreatment is important for chemical phase analysis of elements. In this study, the geological samples of the Laozuoshan gold mine are chosen to pretreat by ultrasonic centrifugation and cyclotron oscillation, and the content of gold in eight chemical phases (water-soluble, ion exchange and clay adsorption, organic matter bound, iron-manganese oxide bound, naked or seminaked, carbonate bound, sulfide bound, and insoluble silicate states) is determined by atomic absorption spectrometry. The results show that the gold content of water-soluble, ion exchange and clay adsorption, iron-mang

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Gray-Wannell, Nia, Peter J. Holliman, H. Christopher Greenwell, Evelyne Delbos, and Stephen Hillier. "Adsorption of phosphate by halloysite (7 Å) nanotubes (HNTs)." Clay Minerals 55, no. 2 (June 2020): 184–93. http://dx.doi.org/10.1180/clm.2020.24.

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AbstractThe adsorption and retention of phosphates in soil systems is of wide environmental importance, and understanding the surface chemistry of halloysite (a common soil clay mineral) is also of prime importance in many emerging technological applications of halloysite nanotubes (HNTs). The adsorption of phosphate anions on tubular halloysite (7 Å) has been studied to gain a greater understanding of the mechanism and kinetics of adsorption on the surface of HNTs. Two well-characterized tubular halloysites with differing morphologies have been studied: one polygonal prismatic and one cylindr

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Raduly, Monica Florentina, Valentin Raditoiu, Alina Raditoiu, Luminita Eugenia Wagner, Viorica Amariutei, and Cristian Andi Nicolae. "Luminescent Hybrid Materials Based on Curcumin Derivatives Embedded in Palygorskite." Materiale Plastice 55, no. 1 (March 30, 2018): 63–67. http://dx.doi.org/10.37358/mp.18.1.4964.

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The seven curcumin derivatives were deposited on palygorskite in order to obtain hybrid materials. The fluorescence emission spectra of the obtained materials show a decrease in fluorescence intensity relative to the respective dyes, due to the environments around the dyestuff molecules created in the host matrices. Absorption studies show the best adsorption on the inorganic matrix, for the compounds with the hydroxyl groups. Correlating fluorescence spectra of hybrid materials with the results for absorption spectra of the dyes adsorbtion on the surface of the clay lead to the conclusion tha

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Rejeb, Roua, Siegrid De Baere, Mathias Devreese, Richard Ducatelle, Siska Croubels, Madiha Hadj Ayed, Achraf Ghorbal, and Gunther Antonissen. "Calcination Improves the In Vivo Efficacy of a Montmorillonite Clay to Bind Aflatoxin G1 in Broiler Chickens: A Toxicokinetic Approach." Toxins 12, no. 10 (October 18, 2020): 660. http://dx.doi.org/10.3390/toxins12100660.

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The goal of this study was to investigate the toxicokinetic characteristics of aflatoxin G1 (AFG1) in broiler chickens and the effect of calcination of a Tunisian montmorillonite clay on the in vivo absorption of AFG1. In this study, broiler chickens were randomly distributed into four groups of 10 animals. Group 1 was administered AFG1 (2 mg/kg body weight (BW)) by single intravenous injection (IV), group 2 received an intra-crop bolus (PO) of AFG1 without any clay, group 3 was dosed AFG1 PO together with an oral bolus of purified clay (CP), and group 4 received AFG1 PO with an oral bolus of

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Mundim, Helen Sandra de Sousa Laet, Brunno Borges Canelhas, Fausto de Souza Pagan, Júlio Cesar de Sousa Inácio Gonçalves, Mário Sérgio da Luz, and Deusmaque Carneiro Ferreira. "Optimization of Pb2+, Cd2+, Ni2+ and Ba2+ adsorption onto light expanded clay aggregate (LECA)." Ciência e Natura 44 (April 12, 2022): e3. http://dx.doi.org/10.5902/2179460x68809.

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The possibility of Pb2+, Cd2+, Ni2+ and Ba2+ ions removal from aqueous solution using light expanded clay aggregate (LECA) was investigated in this work. The central composite design (CCD) in response surface methodology (RSM) was used to optimize the operating parameters (adsorbent granulometry, absorption time and initial metal ions concentration) to reach the maximum ions removal in single and multi-elemental solutions. After optimization, the results shows that the removal efficiency decrease following the ion sequence Pb2+ > Ba2+ > Cd2+ > Ni2+ ions. The better efficiency (~95%) i

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Arai, Hirotsugu, Keizo Ishii, Shigeo Matsuyama, Fumito Fujishiro, Azusa Ishizaki, Naoyuki Osada, Hiroyuki Sugai, et al. "Evaluating radiocesium retention ability of root-mat horizon using micro-PIXE analysis." International Journal of PIXE 24, no. 01n02 (January 2014): 29–34. http://dx.doi.org/10.1142/s012908351450003x.

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A lot of radiocesium had been deposited onto pastures and grasslands following Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. More radiocesium was accumulated in root-mat horizon than in both above ground plant bodies and mineral soils. In this study, factors causing higher radiocesium concentrations in root-mat horizon were evaluated by the addition of stable cesium solution and particle-induced X-ray emission (PIXE) analysis. Results suggest that adsorption onto root surfaces played a significant role in Cs accumulation in root-mat horizon. Furthermore, absorption of Cs was key to i

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Honda, Mitsunori, Yui Kaneta, and Tsuyoshi Yaita. "EXAFS investigation of strontium adsorption onto weathered biotite." AIP Advances 13, no. 1 (January 1, 2023): 015314. http://dx.doi.org/10.1063/5.0106879.

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The efficiency of the sorption of Sr2+ on weathered biotite (WB), a type of clay mineral, was investigated. Removal of Sr2+ and Cs+ is important in the treatment of contaminated water from the 1F accident, which is one of the radionuclide waste treatment problems. We focused on developing an adsorption method for Sr ions using WB, which is abundant in Fukushima. Applying a molten salt treatment, the amount of sorbed Sr2+ simply increased as the added mass ratio of strontium chloride (SrCl2) increased from 1:1, 1:5, and 1:10 for the onefold, fivefold, and tenfold additions of SrCl2, respectivel

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Nilpairach, Siriphan, Anucha Watchaikun, Kasidech Panyawatcharakom, Thanakorn Wasanapiarnpong, and Noppasint Jiraborvornpongsa. "Effect of Aluminum Hydroxide Addition on Properties of Fired Refractory Clay Brick." Key Engineering Materials 766 (April 2018): 300–304. http://dx.doi.org/10.4028/www.scientific.net/kem.766.300.

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The pottery of Ratchaburi is very famous especially dragon jar which was fired by using dragon kiln. The kiln was made of unfired clay bricks, which its properties including high refractoriness, low thermal shrinkage and durable are desired. Aluminum hydroxide is an interesting material for improving brick’s properties, providing high active alumina (gamma-alumina) content after decomposition, high melting point and also reasonable cost. The study evaluated the effect of an additive, Al (OH)3, on the fried properties of refractory clay brick. In this study, four difference proportions of Al (O

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Махмудова, Л. Ш., Х. Х. Ахмадова, Ж. Т. Хадисова, З. А. Абдулмежидова, and Э. У. Идрисова. "INVESTIGATION OF EFFICIENCY OF NATURAL GAS DRYING BY ABSORPTION AND ADSORPTION METHODS." Вестник ГГНТУ. Технические науки, no. 4(22) (December 25, 2020): 19–28. http://dx.doi.org/10.34708/gstou.2020.27.16.003.

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В статье проанализированы современные методы осушки природного газа для дальнейшей переработки его в метано-водородную смесь. Приведены результаты исследования абсорбционной и адсорбционной осушки природного газа жидкими реагентами (этиленгликолями) и твердыми адсорбентами (цеолитами и бентонитами). Показано, что природные бентонитовые глины обладают сравнительно небольшой адсорбционной активностью, их активация водными растворами Na2CО3 и H2SO4 способствует повышению адсорбционной активности, и их применение в комплексе с другими адсорбентами способствует значительному повышению процессов адс

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Wang, Ning, Huihui Du, Qiaoyun Huang, Peng Cai, Xingmin Rong, Xionghan Feng, and Wenli Chen. "Surface complexation modeling of Cd(II) sorption to montmorillonite, bacteria, and their composite." Biogeosciences 13, no. 19 (October 6, 2016): 5557–66. http://dx.doi.org/10.5194/bg-13-5557-2016.

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Abstract. Surface complexation modeling (SCM) has emerged as a powerful tool for simulating heavy metal adsorption processes on the surface of soil solid components under different geochemical conditions. The component additivity (CA) approach is one of the strategies that have been widely used in multicomponent systems. In this study, potentiometric titration, isothermal adsorption, zeta potential measurement, and extended X-ray absorption fine-structure (EXAFS) spectra analysis were conducted to investigate Cd adsorption on 2 : 1 clay mineral montmorillonite, on Gram-positive bacteria Bacill

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Adisu, Ngusey, Subramanian Balakrishnan, and Haimanot Tibebe. "Synthesis and Characterization of Fe3O4-Bentonite Nanocomposite Adsorbent for Cr(VI) Removal from Water Solution." International Journal of Chemical Engineering 2022 (September 9, 2022): 1–18. http://dx.doi.org/10.1155/2022/4441718.

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Bentonite-magnetite nanocomposite adsorbent (BMNC) was made and investigated for its adsorption removal of Cr(VI) from an aqueous solution. This adsorbent was prepared by the coprecipitation method from sodium bentonite (BNa) with iron chloride solution at controlled pH and under an inert atmosphere. These adsorbents were characterized by atomic absorption spectrophotometer (AAS), Brunauer–Emmett–Teller (BET), dynamic light scattering (DLS), scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) analyses. Particle size of BMNC was in the

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Zhang, Xiao, Chen Chen, Ting Cheng, Mingyue Wen, Lei Wang, and Fenxu Pan. "Making Pb Adsorption-Saturated Attapulgite with Excellent Photocatalysis Properties through a Vulcanization Reaction and Its Application for MB Wastewater Degradation." International Journal of Environmental Research and Public Health 19, no. 16 (August 22, 2022): 10457. http://dx.doi.org/10.3390/ijerph191610457.

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Attapulgite (AT) is a clay mineral with rich reserves in China, and it has good adsorption activity for Pb-containing wastewater. However, as a hazardous waste, the treatment of Pb adsorption-saturated attapulgite was quite difficult. In this work, through a simple vulcanization reaction, the waste Pb adsorption-saturated attapulgite (AT@Pb) was transformed into composite materials (AT@PbS) with good photocatalytic performance. After comprehensive material characterization (including XRD, TEM, XPS, and UV-Vis), the photocatalytic degradation performance and mechanism of AT@PbS for methylene bl

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Baghaie, Amir Hossein, and Mehran Keshavarzi. "The Effect of Montmorillonite Nano-Clay on the Changes in Petroleum Hydrocarbon Degradation and Cd Concentration in Plants Grown in Cd-Polluted Soil." Avicenna Journal of Environmental Health Engineering 5, no. 2 (December 29, 2018): 100–105. http://dx.doi.org/10.15171/ajehe.2018.13.

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Contamination with heavy metals and petroleum hydrocarbons is considered as an environmental problem. Thus, this research was done to evaluate the effect of montmorillonite nano-clay on the changes in petroleum hydrocarbon degradation and cadmium (Cd) concentration in plant grown in a Cd-polluted soil. Treatments consisted of two levels of montmorillonite nano-clay (0 and 1% W/W) in a Cd-polluted soil (0, 5, 10 mg Cd/kg soil) and crude oil-polluted soil (0, 1 and 2% W/W). The plant used in this study was Tall Fescue (Festuca arundinacea L.). After 20 weeks, the concentration of Cd in plants wa

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