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层层组装法制备[CTS/SA]c/lPET纳米纤维膜及动态吸附Cu2+

作者：漆麟，汪滨，王娇娜，李从举

单位： 1. 北京服装学院材料科学与工程学院，北京100029； 2. 北京市服装材料研究开发与评价重点实验室，北京100029

关键词：纳米纤维膜；铜离子；层层组装；动态吸附

DOI号：

分类号：

出版年,卷(期):页码： 2017,37(1):75-80

摘要：

静电纺纳米纤维薄膜由于其高孔隙率和大比表面积，因而广泛应用于重金属离子吸附领域。利用层层自组装法，以聚对苯二甲酸乙二醇酯为基底制备了不同浓度和层数的壳聚糖/海藻酸钠复合纳米纤维膜并用其处理水中铜离子(Cu2+)。壳聚糖和海藻酸钠聚电解质溶液最佳浓度均为10.5 g·L-1，最适宜层数为10层，当溶液pH为6时，Cu2+去除率可达99.9%，使用时长达12 h以上。复合膜具有高效率和良好的亲水性等特点，具有很好的应用潜力。

Due to the large pore size and specific surface area, electrospun nanofiber membranes have comprehensive prospects in application in heavy metal ion adsorption. In this work, a polyethylene terephthalate nanofibrous membrane for copper ion removal supported on layer-by-layer assembly coatings was prepared via electrospinning. The dynamic adsorption property has been studied. The best conditions of the membrane for copper ion removal were as follow: The optimal concentration of chitosan/sodium alginate was 10.5 g•L-1 and the most appropriate layers are 10 layers. The optimal pH value for copper ion removal was 6.0, and the best removal efficiency in this experiment was 99.9 %. The filtration time could last 12 h. It could be found that this nanofibrous membrane for copper ion dynamic adsorption was hydrophilic and high efficient.

基金项目：

基金项目：国家自然科学基金项目(批准号：21274006，51503005)；北京市科技北京百名领军人才工程（编号：LJ201614），北京市百千万人才工程资助项目；北京市属高等学校高层次人才引进与培养计划项目-北京市长城学者培育计划(CIT&TCD20150306)，北京市属高校创新能力提升计划项目（no. TJSHG201310012021）；北京服装学院创新团队与优秀人才选拔与培养计划项目；北京市服装材料研究开发与评价重点实验室开放课题（2015ZK-02）资助.

作者简介：

第一作者简介：漆麟（1991-），男，江西南昌人，硕士研究生，从事层层组装制备纳米纤维复合膜用于重金属离子处理。*通讯作者：李从举，男，博士，教授，博士生导师，主要从事纳米技术与纤维材料研究。Email: congjuli2014@126.com

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