Metal cation removal by P（VC-r-AA） copolymer ultrafiltration membranes

作     者：Nachuan Wang Jun Wang Peng Zhang Wenbin Wang Chuangchao Sun Ling Xiao Chen Chen Bin Zhao Qingran Kong Baoku Zhu 

作者机构：Depamnent of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China Hainan Litree Purifying Technology Co. Ltd. Haikou 571126 China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2018年第12卷第2期

页      面：262-272页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：This research was supported by the National High Technology Research and Development Program of China (Granted No. 2012AA03A602 )   the National Basic Research Program of China (Granted No. 2009CB623402) and the National Natural Science Foundation of China (Grant No. 20974094) 

主　　题：poly(vinyl chloride-r-acrylic acid) negatively charged PVC membrane anti-fouling heavy metal adsorption Cu(II)removal 

摘      要：A series of amphiphilic copolymers containing poly（vinyl chloride-r-acrylic acid） （P（VC-r-AA）） was synthesized and used to prepare membranes via a non-solvent induced phase separation method. The prepared membranes were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and water contact angle and zeta potential measurements. The copolymer P（VC-r-AA） chains did not dissolved in a coagulation bath, indicating that the AA segments were completely retained within the membrane. Enriching degree of AA segments in surface layer was 2 for copolymer membrane. In addition, the introduction of AA segments made the membrane electronegative and hydrophilic so that the membrane was sensitive to the solution pH. The fouling resistance, adsorption of Cu（II）, Cr（III） and Ce（IV） ions and the desorption properties of the membranes were also determined. The copolymer membranes exhibited good antifouling performance with a fouling reversibility of 92%. The membranes also had good adsorption capacities for Cu（II）, Cr（III） and Ce（IV） ions. The optimal pH for Cu（II） adsorption was 6 and the copolymer membrane has potential applications for low concentration Cu（II） removal.