文献类型：期刊文献

英文题名：Thin-Film Composite Membrane Prepared by Interfacial Polymerization on the Integrated ZIF-L Nanosheets Interface for Pervaporation Dehydration

作者：Zhang, Xin[1,2];Zhan, Zi-Ming[1];Cheng, Feng-Yi[1];Xu, Zhen-Liang[1];Jin, Peng-Rui[2];Liu, Ze-Peng[1];Ma, Xiao-Hua[1];Xu, Xin-Ru[1];Van der Bruggen, Bart[2]

机构：[1]East China Univ Sci & Technol ECUST, Chem Engn Res Ctr, Sch Chem Engn, State Key Lab Chem Engn,Membrane Sci & Engn R&D C, Shanghai 200237, Peoples R China;[2]Katholieke Univ Leuven, Dept Chem Engn, B-3001 Heverlee, Belgium

年份：2021

卷号：13

期号：33

起止页码：39819

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20213610849636);WOS:【SCI-EXPANDED(收录号:WOS:000691785200085)】；

基金：X.Z. would like to acknowledge the support provided by China Scholarship Council (CSC) of the Ministry of Education, P. R. China (CSC No. 202006740062). The authors are grateful for the research funding provided by the National Natural Science Foundation of China (21176067, 21406060, and 22078092).

语种：英文

外文关键词：ZIF-L nanosheets; interfacial polymerization; ethanol dehydration; thin-film composite; pervaporation; ceramic support

摘要：Thin-film composite (TFC) membranes are attracting wide attention because their ultrathin selective layer usually corresponds to the higher membrane flux for pervaporation. However, the direct preparation of the TFC membranes on ceramic substrates confronted with the great difficulties because the larger pores on ceramic substrate surfaces are detrimental to the formation of an intact polyamide (PA) selective layer produced by interfacial polymerization (IP) reaction. Here, the integrated ZIF-L nanosheets were proposed to be used as an assistance interlayer for the first time to eliminate the existence of the pores of the ceramic support, and provides a better basis for the formation of an intact PA selective layer by IP reaction between TMC and ethylenediamine (EDA). The experimental data obtained in pervaporation (PV) show that the increased flux from 1.1 to 2.9 kg/m(2)h corresponds to the decreased separation factor from 396 to 110 when the feed concentration of ethanol decreases from 95 wt % to 80 wt % at 50 degrees C. In addition, the membrane flux increases from 0.8 to 2.5 kg/m(2)h with a change of the separation factor from 683 to 111 when the operational temperature varies from 30 to 60 degrees C. These results demonstrate the great potential of the fabricated TFC membranes in practical application for PV dehydration of organic solutions.