膜科学与技术

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Tuning the structural parameter of thin film composite forward osmosis （TFC-FO）membranes

Authors： Peipei Xiao1,2, Yong Yin2, Jianfeng Song2, Zhouwei Wang2, Xuemei, Li2, Gang Li2, Chuyi Zeng2*, Tao He2*

Units： 1College of Chemical Engineering, Xiangtan University，Xiangtan 411005； 2Shanghai Advanced Research Institute, Shanghai, 201203

KeyWords： forward osmosis, tuning structural parameter, hydrophilic, co-casting

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014,34(5):40-43

Abstract：

Forward osmosis (FO) process is driven by the osmotic pressure differential across a semipermeable membrane. The structural parameter of the FO membrane is critical in determining mass transfer resistance and, eventually, the performance of the corresponding membrane. Herein the research progress is reported on the tuning of membrane structural parameter of thin film composite membranes. Two approaches are reported namely, controlling the wettability of PSf by blending with PVP, and tuning the PSf pore structure via co-casting. Results demonstrated that both approaches have yielded membranes with reduced S values of the support layers and consequently better TFC FO membranes than purely PSf based TFC membranes or HTI CTA membranes.

Funds：

国家重大基础研究973项目 (No. 2012CB720903 )，自然科学基金项目( 21176119)。

AuthorIntro：

肖佩佩(1989-)，女，湖南常德人，硕士研究生，湘潭大学，膜法水处理。*通讯联系人： mail: zengcy@sari.ac.cn, het@sari.ac.cn.

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