Improved performance of polyamide thin-film composite nanofiltration membrane by using polyetersulfone/polyaniline membrane as the substrate

被引：123
作者：
Zhu, Shu [1 ,2 ,3 ]
Zhao, Song [1 ,2 ,3 ]
Wang, Zhi [1 ,2 ,3 ]
Tian, Xinxia [1 ,2 ,3 ]
Shi, Mengqi [1 ,2 ,3 ]
Wang, Jixiao [1 ,2 ,3 ]
Wang, Shichang [1 ,2 ]
机构：
[1] Tianjin Univ, Chem Engn Res Ctr, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
[2] Tianjin Key Lab Membrane Sci & Desalinat Technol, Tianjin 300072, Peoples R China
[3] Tianjin Univ, State Key Lab Chem Engn, Synerget Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
来源：
JOURNAL OF MEMBRANE SCIENCE | 2015年 / 493卷
基金：
中国国家自然科学基金;
关键词：
Nanofiltration; Thin film composite membrane; Substrate; Polyethersulfone/polyaniline; Performance; REVERSE-OSMOSIS MEMBRANES; INTERFACIAL POLYMERIZATION; SEPARATION PERFORMANCE; POLYSULFONE SUPPORTS; RO MEMBRANES; MORPHOLOGY; TRANSPORT; WATER; NANOPARTICLES; POLYANILINE;
D O I：
10.1016/j.memsci.2015.07.013
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this work, non-woven fabric supported polyetersulfone (PES)/polyaniline (PANI) blended membranes were fabricated by immersion precipitation process and used as the substrates for thin-film composite (TFC) membranes. Polyamide (PA) TFC nanofiltration membrane was then prepared via interfacial polymerization of piperazine (PIP) in water with trimesoyl chloride (TMC) in hexane over PES and PES/PANI substrates. The prepared substrates and TFC nanofiltration membranes were characterized with respect to chemical structure, morphology and separation performance. The influence of substrate properties on the PA layer was investigated and discussed. It is evident from the results that the differences in substrate properties affect the diffusion and reaction of the monomers during interfacial polymerization process, leading to the changes in the thickness and cross-linking degree of the PA layer. Compared to PES substrate, the PES/PANI substrate comprising 0.2 wt% of PANI could greatly enhance flux and salt rejection of TFC nanofiltration membrane. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：263 / 274
页数：12
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