膜科学与技术

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Preparation ，characterization and Cu2+ dynamic adsorption of [CTS/SA]c/lPET using Layer-by-Layer assembly coatings

Authors： QI Lin1 2, WANG Bin1 2, WANG Jiaona1 2, LI Congju1 2 *

Units： 1. College of Material Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China； 2. Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing 100029, China

KeyWords： Nanofibrous membrane; Copper ion; Layer-by-layer; Dynamic adsorption

ClassificationCode：

year,volume(issue):pagination： 2017,37(1):75-80

Abstract：

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.

Funds：

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.

AuthorIntro：

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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