文献类型：期刊文献

英文题名：Double-Crosslinked GO Interlayer Framework as a Pervaporation Hybrid Membrane with High Performance

作者：Zhang, Xin[1];Zhang, Ming-Xiao[1];Ding, Hao[1];Yang, Hu[1];Ma, Xiao-Hua[1];Xu, Xin-Ru[1];Xu, Zhen-Liang[1];Tang, Chuyang Y.[2,3,4]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Chem Engn Res Ctr,Membrane Sci & Engn R&D Lab, Shanghai Key Lab Multiphase Mat Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Univ New South Wales, UNESCO Ctr Membrane Sci & Technol, Sch Chem Engn, Sydney, NSW 2052, Australia;[3]Univ New South Wales, UNSW Water Res Ctr, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia;[4]Univ Hong Kong, Dept Civil Engn, Pokfulam Rd, Hong Kong 999077, Peoples R China

年份：2019

卷号：4

期号：12

起止页码：15043

外文期刊名：ACS OMEGA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000488838700041)】；

基金：The authors gratefully acknowledge the research funding provided by the 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

摘要：Graphene oxide (GO), as a two-dimensional structure material, has attracted widespread attention in the field of molecule sieving. However, GO-based membranes usually exhibit undesirable separation performance because the microstructure of GO is difficult to adjust. Herein, a novel double-crosslinking strategy for tuning the interlayer spacing of GO is reported. The hybrid membrane fabricated by the double-crosslinking strategy was used for pervaporation (PV) dehydration of isopropanol. To achieve high-performance of the PV hybrid membranes, the effects of operating cycles, chitosan concentration, and GO concentration were systematically investigated. The PV hybrid membranes were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, water contact angle measurement, and scanning electron microscopy. The results demonstrate that the interlayer of GO can be adjusted successfully by the double-crosslinking strategy. The fabricated hybrid membrane containing 0.1 wt % GO exhibited excellent performance with a flux of 4391 g/m(2) h and a separation factor of 1491, which indicated that the double-crosslinking strategy may extend the applications of GO in the field of membrane separation.