Removal of Ca(II) and Mg(II) ions from solutions to sulfonic cation exchanger based on plasticized polyvinylchloride

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-03-03 DOI:10.1080/10426507.2024.2315530

Davron Bekchanov , Mukhtar Mukhamediev , Murod Juraev , Rasim Alosmanov

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Abstract

The ion-exchange material was obtained by oxidation of the product of the interaction of polyvinyl chloride with an aqueous solution of calcium polysulfide. The structure of the resulting cation exchanger and metal-containing hybrid material was identified by IR spectroscopy and elemental analysis. The kinetics of absorption of metal ions in cation exchange resin was analyzed by using pseudo-first and pseudo-second order models. The rate constants in the adsorption process were calculated. According to the correlation coefficient, it was determined that the sorption process proceeds according to the laws of a pseudo-second order reaction. Based on the equilibrium sorption it was evaluated according to the isotherm models of Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R). The results showed that the absorption of Ca²⁺ and Mg²⁺ ions from aqueous solutions in cation exchange resin displays the best accordance with the Langmuir monomolecular theory. In addition, the results showed that the cation exchanger (PVC-SO₃H) effectively cleans river water from Ca²⁺ and Mg²⁺ ions for industrial enterprises.

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用基于塑化聚氯乙烯的磺酸阳离子交换剂去除溶液中的 Ca(II) 和 Mg(II) 离子

这种离子交换材料是通过氧化聚氯乙烯与聚硫化钙水溶液相互作用的产物而获得的。所产生的阳离子交换材料的结构是由聚氯乙烯与聚硫化钙水溶液相互作用的产物氧化而成的。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.