文献类型：期刊文献

英文题名：Multilayer assembled CS-PSS/ceramic hollow fiber membranes for pervaporation dehydration

作者：Zhang, Xin[1];Wang, Ming[1];Ji, Chen-Hao[1];Xu, Xin-Ru[1];Ma, Xiao-Hua[1];Xu, Zhen-Liang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：203

起止页码：84

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20181605027529);WOS:【SCI-EXPANDED(收录号:WOS:000436051500011)】；

基金：The authors gratefully acknowledge the research funding provided by Hong Kong Scholars Program (No. XJ2015015), National Natural Science Foundation of China (21406060), Fundamental Research Funds for the Central Universities (WA1514305) and China Postdoctoral Science Foundation (2016M601527).

语种：英文

外文关键词：Multilayer assembly; Ceramic hollow fiber membrane; Pervaporation; Dehydration

摘要：Pervaporation (PV) is an effective approach for the removal of trace or micro substances from solutions. PV membrane is considered to be the most essential element for this process. In this study, the fabrication of ceramic hollow fiber PV membranes is demonstrated through multilayer assembly of poly(4-styrenesulfonic acid) and chitosan. The surface and cross-section morphologies, physical and chemical structures as well as the hydrophilicity of the membranes were characterized by field emission scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrophotometer (FTIR) and water contact angle, respectively. The PV performance of the composite membranes was investigated by dehydration of water-ethanol solution. The effect of assembly solution concentration on PV performance was studied systematically. The assembled composite membranes with the concentration of 0.75 wt% PSS solution exhibited the highest PV separation index (PSI) value of 4.47 x 10(5) with flux of 495 g/m(2) h and separation factor of 904 for dehydration of 10 wt% water-ethanol solution at 70 degrees C.