絮凝剂CTS-GSH的合成及其除铬性能

doi:10.12034/j.issn.1009-606X.217254

过程工程学报 ›› 2018, Vol. 18 ›› Issue (2): 312-317.DOI: 10.12034/j.issn.1009-606X.217254

絮凝剂CTS-GSH的合成及其除铬性能

张鹏^*，张伟，廖为雄

湖南科技大学土木工程学院，湖南湘潭 411201

收稿日期:2017-05-15 修回日期:2017-07-15 出版日期:2018-04-22 发布日期:2018-04-10
通讯作者: 张鹏 zhangpeng388@126.com
基金资助:
锰矿区锰与DOM相互作用机制及混凝去除机理研究;新型混凝剂CTS-GSH分子模型构建及对水中铬（VI）的去除机理研究

Synthesis of Chitosan?Glutathione and Its Performance of Chromium Removal

Peng ZHANG^*, Wei ZHANG, Weixiong LIAO

School of Civil Engineering, Hunan University of Science & Technology, Xiangtan, Hunan 411201, China

Received:2017-05-15 Revised:2017-07-15 Online:2018-04-22 Published:2018-04-10

摘要/Abstract

摘要： 以壳聚糖(CTS)、还原型谷胱甘肽(GSH)为反应物，通过水溶液聚合法制备了新型巯基化壳聚糖高分子絮凝剂壳聚糖?谷胱甘肽(CTS?GSH)，采用单因素实验得到了最优的制备条件，并分析了产物的结构与表面微观性能. 结果表明，最优制备条件为质量比CTS:GSH 5:5、反应时间5 h、保护剂N-羟基丁二酰亚胺用量0.40 g、交联剂1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐用量0.25 g、反应体系pH 3.5. 壳聚糖与谷胱甘肽发生了酰胺化反应，所得CTS?GSH表面微观结构较好.

关键词: 壳聚糖, 谷胱甘肽, 合成, 絮凝, 除铬

Abstract: The thiolated chitosan coagulant CTS?GSH was prepared by chitosan (CTS) and glutathione (GSH) under the reaction of amidation. Single factor experimental method was used to investigate the optimum preparation conditions. The structural features and surface microcosmic property were measured. The results showed that the optimum preparation conditions were mass ratio of chitosan/glutathione of 5:5, reaction time of 5 h, dosage of protecting agent N-hydroxy succinimide of 0.4 g, dosage of cross-linking agent 1-ethyl-(3-(dimethylaminopropyl) carbodiimide hydrochloride of 0.25 g, and pH 3.5. Chitosan and glutathione undergo imidization reaction, and flocculant CTS-GSH has better surface microstructure.

Key words: chitosan, glutathione, synthesis, flocculation, chromium removal

张鹏张伟廖为雄. 絮凝剂CTS-GSH的合成及其除铬性能[J]. 过程工程学报, 2018, 18(2): 312-317.

Peng ZHANG Wei ZHANG Weixiong LIAO. Synthesis of Chitosan?Glutathione and Its Performance of Chromium Removal[J]. Chin. J. Process Eng., 2018, 18(2): 312-317.

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絮凝剂CTS-GSH的合成及其除铬性能

Synthesis of Chitosan?Glutathione and Its Performance of Chromium Removal

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