文献类型：期刊文献

英文题名：High-Flux Fine Hollow Fiber Nanofiltration Membranes for the Purification of Drinking Water

作者：Gao, Peng[1];Xu, Sun-Jie[1];Xu, Zhen-Liang[1];Li, Ping[1];Wu, Yu-Zhe[1];Li, Lan-Qian[1];Zhang, Hai-Zhen[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Chem Engn Res Ctr, Membrane Sci & Engn R&D Lab,State Key Lab Chem En, Shanghai 200237, Peoples R China

年份：2021

卷号：60

期号：4

起止页码：1817

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20210609884796);WOS:【SCI-EXPANDED(收录号:WOS:000618164700027)】；

基金：The authors gratefully acknowledge the research funding provided by the National Natural Science Foundation of China (22078092) and supported by the Fundamental Research Funds for the Central Universities (JKA012022001 and JKA012011017).

语种：英文

外文关键词：Water treatment - Nanofiltration membranes - Sodium sulfate - Polyvinyl alcohols - Purification - Surface defects - Mammals - Potable water - Sodium chloride - Nanofiltration

摘要：High-flux fine hollow fiber nanofiltration (HFNF) membranes were prepared by interfacial polymerization (IP) using polysulfone (PSF) ultrafiltration (UF) membranes with an outer diameter of 425 mu m as the substrate for the treatment of drinking water. Trimesoyl chloride (TMC) was selected as the organic phase monomer, while poly(vinyl alcohol) (PVA) was added into piperazine (PIP) aqueous phase solution to reduce the surface defects and to enhance the separation performance of the NF membrane. The as-prepared fine HFNF membranes had a large packing density and effective area. The optimal preparation conditions of the fine HFNF membrane were determined by orthogonal experiments in which the flux of the membrane reached 34.2 +/- 1.5 L.m(-2).h(-1).bar(-1), while its salt rejection sequence was as follows: Na2SO4 (97.6 +/- 1.5%) > MgSO4 (96.1 +/- 1.8%) > MgCl2 (83.5 +/- 2.1%) > NaCl (27.9 +/- 2.6%). During the long-term stability test for 132 h, the membrane retained a high flux (>23.7 +/- 1.5 L.m(-2).h(-1).bar(-1)) and high Na2SO4 rejection (>97.2 +/- 1.1%). Additionally, it exhibited huge potential for application in drinking water purification in which the as-prepared NF membrane exhibited excellent antifouling performance for bovine serum albumin (BSA).