Polysaccharide-based biopolymer hydrogels for heavy metal detection and adsorption

文献类型： 外文期刊

第一作者： Zhao, Chenxi

作者： Zhao, Chenxi;Liu, Guangyang;Tan, Qiyue;Gao, Mingkun;Chen, Ge;Huang, Xiaodong;Xu, Xiaomin;Li, Lingyun;Xu, Donghui;Zhao, Chenxi;Tan, Qiyue;Zhang, Yaowei;Wang, Jing

作者机构：

关键词： Biopolymers; Hydrogels; Heavy metal ion; Adsorption

期刊名称：JOURNAL OF ADVANCED RESEARCH （ 影响因子：10.7； 五年影响因子：11.4 ）

ISSN： 2090-1232

年卷期： 2023 年 44 卷

页码：

收录情况： SCI

摘要： Background: With rapid development in agriculture and industry, water polluted with heavy metallic ions has come to be a serious problem. Adsorption-based methods are simple, efficient, and broadly used to eliminate heavy metals. Conventional adsorption materials have the problems of secondary environmental contamination. Hydrogels are considered effective adsorbents, and those prepared from biopolymers are biocompatible, biodegradable, non-toxic, safe to handle, and increasingly used to adsorb heavy metal ions. Aim of review: The natural origin and easy degradability of biopolymer hydrogels make them potential for development in environmental remediation. Its water absorption capacity enables it to efficiently adsorb various pollutants in the aqueous environment, and its internal pore channels increase the specific surface area for adsorption, which can provide abundant active binding sites for heavy metal ions through chemical modification. Key scientific concept of review: As the most representative of biopolymer hydrogels, polysaccharidebased hydrogels are diverse, physically and chemically stable, and can undergo complex chemical modifications to enhance their performance, thus exhibiting superior ability to remove contaminants. This review summarizes the preparation methods of hydrogels, followed by a discussion of the main categories and applications of polysaccharide-based biopolymer hydrogels. (c) 2022 The Authors. Published by Elsevier B.V. on behalf of Cairo University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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