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Preparation of high performance TFC FO membranes with the CNTs interlayer

Authors： ZHOU Zongyao, HU Yunxia, Li Jinqiang, WANG Qun, AN Xiaochan, WANG Ping

Units： 1. CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, P. R. China. 2. State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Research on Membrane Science and Technology, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, P. R. China. 3. University of Chinese Academy of Sciences, Beijing 100049, P. R. China.

KeyWords： forward osmosis membrane; TFC membrane; interlayer; carbon nanotubes

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2018,38(3):34-40

Abstract：

To fabricate high performance thin film composite forward osmosis membrane with great permeability and selectivity, we spray coated an ultrathin CNT film on the polysulfone membrane support and synthesized the polyamide on top of the CNT interlayer to achieve TFC FO membrane. Our results found that the TFC FO membrane with the CNTs interlayer provided a favorable surface to helps to optimize the structure of the TFC FO membrane. The selective permeability of the TFC FO membrane was greatly improved. PSf-CNTs-PA FO membrane achieved an excellent water flux of 33.27 L· m-2· h-1，raising by 55.18% compared with PSf-PA FO membrane without a CNTs interlayer; specific reverse salt flux of the PSf-CNTs-PA FO membrane was 0.047 g/L, decreasing by 26.63%.

Funds：

国家自然科学基金委(No. 21476249, No. 51708408),烟台市重点研发计划（No. 2015ZH063），天津市重大平台项目

AuthorIntro：

姓名（1992-），男，山东滨州人，在读硕士，从事海水资源化利用与正渗透膜的开发应用，E-mail：zhouzongyao1992@163.com 通讯作者，E-mail：yunxiahu@yic.ac.cn

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