Influence of the Structure of Sulfonic Polyelectrolyte Matrices on the Adsorption of Cu2+ Ions

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-03-18 DOI:10.1134/S1061933X23600999
S. G. Laishevkina, O. D. Iakobson, E. M. Ivan’kova, B. M. Shabsel’s, N. N. Shevchenko
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Abstract

Porous hydrophilic polyelectrolyte matrices have been obtained by reverse suspension copolymerization of p-styrenesulfonate with N,N'-methylenebisacrylamide, as well as by cryotropic gelation of sulfonic acrylates (3-sulfopropyl methacrylate and sulfobetaine methacrylate). It has been shown that the concentration of sulfonate groups in the obtained polyelectrolytes is 2–3 mmol/g. The morphology and structure of the surface layer of the polyelectrolyte matrices have been studied by scanning electron microscopy and FTIR spectroscopy, while the specific surface area and pore size distribution have been investigated by the BET method. Adsorption of Cu2+ ions has been studied spectrophotometrically. It has been found that polyelectrolyte matrices containing aromatic sulfonate groups have the maximum sorption capacity.

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磺酸型聚电解质基质的结构对 Cu2+ 离子吸附的影响
摘要 通过对苯乙烯磺酸盐与 N,N'-亚甲基双丙烯酰胺的反向悬浮共聚,以及磺酰基丙烯酸酯(3-磺丙基甲基丙烯酸酯和磺基甜菜碱甲基丙烯酸酯)的冷冻凝胶化,获得了多孔亲水性聚电解质基质。研究表明,所获得的聚电解质中磺酸基的浓度为 2-3 毫摩尔/克。扫描电子显微镜和傅立叶变换红外光谱法研究了聚电解质基质表层的形态和结构,BET 法研究了比表面积和孔径分布。对 Cu2+ 离子的吸附进行了分光光度法研究。研究发现,含有芳香族磺酸盐基团的聚电解质基质具有最大的吸附能力。
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来源期刊
Accounts of Chemical Research
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.
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