Preparation and characterization of hollow fiber forward osmosis membrane by interfacial polymerization

被引：0
作者：
Li, Gang [1 ,2 ]
Wang, Zhouwei [2 ]
Li, Chunxia [2 ]
Li, Xuemei [2 ]
He, Tao [2 ]
Gao, Congjie [1 ]
机构：
[1] School of Chemistry and Chemical Engineering, Ocean University of China, Qingdao , 266003, Shandong
[2] Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai
来源：
Huagong Xuebao/CIESC Journal | 2014年 / 65卷 / 08期
基金：
中国国家自然科学基金;
关键词：
External concentration polarization; Forward osmosis; Hollow fiber membrane; Internal concentration polarization; Reverse osmosis;
D O I：
10.3969/j.issn.0438-1157.2014.08.032
中图分类号：
学科分类号：
摘要：
Hollow fiber thin film composite forward osmosis membrane was prepared on the top of a tailor-made polysulfone hollow fiber support by interfacial polymerization. The relationship between casting parameters, membrane structure, and FO performance was studied. The results showed that the thickness of substrate membrane was one of the main factors affecting FO performance. The thicker membrane could cause more serious internal concentration polarization, leading to lower effective osmotic pressure across the membrane as well as water flux in the FO process. A thin film composite membrane with a thickness of 0.129 mm and force at breakage of 2.48 N was obtained. The FO membrane showed a water flux of 10.3 L·m-2·h-1 and a specific salt diffusion of 0.15 g·L-1. © All Rights Reserved.
引用
收藏
页码：3082 / 3088
页数：6
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