曾嵘¹,刘建文¹,赵道辉¹,王银莹¹,张海鹏¹,杨忠华²

• 1:湖北大学 化学化工学院，湖北 武汉 430062
• 2:武汉科技大学 化学与化工学院，湖北 武汉 430081

摘要(Abstract)：

为了得到一种价廉、环保、易于再生的重金属离子吸附剂，以乙酸和水为溶剂，通过相转化法制备壳聚糖（CS）和聚乙烯醇（PVA）共混膜。在碱性条件下，利用环氧氯丙烷制得性能优异的CS/PVA交联膜。在此基础上研究交联膜对重金属Cu²⁺与Ni²⁺的吸附特性、再生性能和吸附动力学行为。实验结果显示，CS/PVA交联膜上重金属Cu²⁺与Ni²⁺的吸附符合Langmuir-Freundlich吸附模型，该交联膜对Cu²⁺与Ni²⁺的饱和吸附容量分别达到52.06和19.05 mg·g^-1，高于大多数常用的吸附剂，且易于再生。研究结果表明：所制备的CS/PVA交联膜是一种性能优良的重金属离子吸附材料，为废水中重金属离子污染物的治理提供新途径。

关键词(KeyWords)： 壳聚糖;聚乙烯醇;交联膜;重金属离子吸附

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（21706055）。

作者(Author): 曾嵘¹,刘建文¹,赵道辉¹,王银莹¹,张海鹏¹,杨忠华²

DOI: 10.3969/j.issn.1003-9015.2020.06.026

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