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Adsorption reactions play an influential role in the partitioning and uptake of chemicals. Even at low concentrations, amino acids are strongly adsorbed by clay minerals …
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The objective of this study was to investigate the adsorption of anionic dye represented by Congo red (CR) using adsorbents prepating from Wyoming …
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The cation exchange of montmorillonite and the anion exchange characteristics of LDH are skillfully utilized without introducing other cation pollutants. ... 308.15, and 318.15 K, …
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The anion–cationic surfactant modified montmorillonite (MMT) were prepared. Anionic surfactant can be intercalated into the interlayer spaces of MMT. Organic carbon …
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For Na-montmorillonite, the outer surface area (Brunauer–Emmett–Teller method) and cation exchange capacity were 32 m 2 /g and 76 mol c /kg, respectively [20]. The edge …
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The value of the adsorption of Cr (VI) oxoanions by modified montmorillonite has appeared to be 0.26–1.05 mg/g depending on the synthesis conditions of the samples. …
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Anion adsorption by clays, especially the negatively charged bentonitic clays, is a surprising phenomenon, since the negative charge of the clay is believed to be inherent in the lattice of …
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Common modification methods of MMT can be applied to achieve anion adsorption and to enhance the adsorption capacity, including inorganic modification, organic modification …
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Adsorption studies showed that the adsorption capacity of MoS 2 @2D-Mts-PVA Gel toward Pb 2+ increases noticeably when MoS 2 @2D Mts content and solution pH rise, yielding a high Pb 2+ adsorption capacity of 257 …
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Nowadays, there is a growing interest toward the investigation of clay-based hybrid materials as they are promising in a wide range of applications from catalysis [], …
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The cation exchange capacity (CEC), determined by adsorption of [Co ... Effects of exchanged surfactant cations on the pore structure and adsorption characteristics of …
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The influence of environmental parameters on the adsorption behavior was studied in detail, whereby the maximum adsorption capacity for the three metals ions was achieved at …
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Organo-mineral derivatives of montmorillonite modified by salts of quaternary ammonium compounds are promising adsorbents for wastewater purification from heavy metal …
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The result indicates that with the improvement of the initial concentration of TC, the adsorption capacity of MMT increases, and the removal efficiency declines. When the initial …
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Organo-Modification of Montmorillonite - Volume 68 Issue 6. Modification of the surfaces of montmorillonite (Mnt) by organic molecules is an effective method for improving …
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Montmorillonite (Mt) is a 2:1-type layered aluminosilicate clay minerals and has been extensively used in metallurgic, pharmaceutical, and environmental industries [1].Due to …
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Montmorillonite was employed as adsorbent to remove cationic and anionic dyes respectively and simultaneously. When the dye present singly, it only had a good effect to …
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The purpose of the presented work was to invert the adsorption capacity of natural montmorillonite from cationic to anionic and to study the adsorption of inorganic anions on the …
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These data revealed that the anion uptake on HDPyCl-montmorillonite accompanied with release of chloride ion into solution through anion-exchange processes. ...
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Lower the pH greater is the anion exchange. Soils with Kaolinite dominant clay have higher anion exchange capacity than montmorillonite or illite. The relative order of anion exchange is OH > …
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The persistence of contaminants such as pharmaceutical products including antibiotics, anti-inflammatory agents, hormones, and many other substances i…
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Furthermore, the adsorption capacity of Mt for NO 3- was significantly improved following the PDDA functionalization. The kinetic modeling suggests that the Pseudo-first …
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Adsorbents with high selectivity and adsorption capacity for toxic anions are needed in water purification procedures and in geotechnical barriers. It was shown that certain clay …
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Our results showed that the HDA modification remarkably improved the adsorption ability of montmorillonite toward TZ molecules. The highest adsorption efficiency was achieved …
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A hydrated complex of 1,10-phenanthroline with Cu 2+ cation was intercalated in the interlayer space of montmorillonite. This intercalation occurs initially by through a cation …
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The Langmuir adsorption capacity of Methylene Blue on montmorillonite was influenced by solution temperature, pH, and ionic strength as reported by Omidi-Khaniabadi …
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The adsorption capacity of high-charge montmorillonite was stronger than low-charge montmorillonite. ... Clay minerals have strong adsorption capacity due to their large …
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Anion adsorption on montmorillonite particles in equilibrated solutions was measured by ion chromatography. ... Further, phosphate has the largest adsorption capacity …
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of the anion-adsorption sites of chitosan-montmorillon-ite were located in the interlayer. Determination of anion adsorption Adsorption experiments of chitosan-montmorillonite for …
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Considerable adsorption of L-Arg to 2 g/L montmorillonite was observed over a wide concentration range at pH 5 in NaCl (Fig. 1). By extending to higher concentrations, the …
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