文献类型：期刊文献

英文题名：Affinity between Metal-Organic Frameworks and Polyimides in Asymmetric Mixed Matrix Membranes for Gas Separations

作者：Ren, Huiqing;Jin, Jiaying;Hu, Jun[1];Liu, Honglai

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2012

卷号：51

期号：30

起止页码：10156

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20123215307524);WOS:【SCI-EXPANDED(收录号:WOS:000306941500029)】；

基金：This work was supported by the National Natural Science Foundation of China (nos. 21176066, 21176065), the 111 Project of Ministry of Education of China (no. B08021), and the Fundamental Research Funds for the Central Universities of China.

语种：英文

外文关键词：Crystalline materials - Surface treatment - Organometallics - Surface defects - Gas permeable membranes

摘要：A series of flat-sheet asymmetric mixed matrix membranes (MMMs) have been fabricated with MOF-5, Cu-3(BTC)(2), and MIL-53(Al) as fillers and PI polymer as a matrix through the dry-wet phase inversion method. After the surface modification by coating a PAA solution (15% wt) on the top of the obtained membrane, a thin defect-free selective skin in the MMM is obtained. The permeance of various gases such as H-2, He, CH4, N-2, and CO2 and their gas pair selectivity have been investigated, respectively. The results show that Cu-3(BTC)(2)/PI MMM possesses the best gas separation performance with H-2 permeance of 0.44 GPU and H-2/CH4 selectivity of 100. In addition, the mechanism of MOF fillers in MMMs has been further revealed by the interaction analysis between MOF fillers and PI chains.