Preparation and properties of hollow fibre nanofiltration membrane with continuous coffee-ring structure

作     者：Xiuzhen Wei Xufeng Xu Yi Chen Qian Zhang Lu Liu Ruiyuan Yang Jinyuan Chen Bosheng Lv Xiuzhen Wei;Xufeng Xu;Yi Chen;Qian Zhang;Lu Liu;Ruiyuan Yang;Jinyuan Chen;Bosheng Lv

作者机构：College of EnvironmentZhejiang University of TechnologyHangzhou 310014China Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang ProvinceHangzhou 310014China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2021年第15卷第2期

页      面：351-362页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：The authors gratefully acknowledge financial support from the Natural Science Foundation of Zhejiang Province(Grant No.LY19E030005) MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Zhejiang University(No.2017MSF 05) The authors also sincerely thank the Open Foundation from the Top Key Discipline of Environmental Science and Engineering,Zhejiang University of Technology(Grant No.20150314) 

主　　题：GO PA interfacial polymerization hollow fibre NF membrane 

摘      要：Polyamide(PA)hollow fibre composite nanofiltration(NF)membranes with a coffee-ring structure and beneficial properties were prepared by adding graphene oxide(GO)into the interfacial polymerization *** presentation of the coffee-ring structure was attributed to the heterogeneous,finely dispersed multiphase reaction system and the“coffee-staineffect of the GO *** the piperazine concentration was 0.4 wt-%,the trimesoyl chloride concentration was 0.3 wt-%,and the GO concentration was 0.025 wt-%,the prepared NF membranes showed the best separation *** permeate flux was 76 L·m^(−2)·h^(−1),and the rejection rate for MgSO4 was 98.6%at 0.4 *** electron microscopy,atomic force microscopy,and attenuated total reflectance-Fourier transform infrared spectroscopy were used to characterize the chemical structure and morphology of the PA/GO NF *** results showed that GO was successfully entrapped into the PA functional *** neutral operating conditions,the PA/GO membrane showed typical negatively charged NF membrane separation characteristics,and the rejection rate decreased in the order of Na2SO_(4)MgSO_(4)MgCl_(2)*** PA/GO NF membrane showed better antifouling performance than the PA membrane.