Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (4): 377-381.DOI: 10.3724/SP.J.1077.2014.13355

• Research Paper • Previous Articles     Next Articles

Deposition of Functional Modified Inorganic Particles on A Macroporous Tube for Synthesis ZIF-7 Membrane by Counter Diffusion Method

YIN Hui-Min, YANG Jian-Hua, XIE Zhong, WANG Jin-Qu, LU Jing-Ming, ZHANG Yan   

  1. (State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China)
  • Received:2012-12-07 Revised:2013-08-28 Published:2014-04-20 Online:2014-03-24
  • About author:YIN Hui-Min. E-mail: xjyhm8@126.com
  • Supported by:

    National Natural Science Foundation of China (21076029); Program for New Century Excellent Talents in University (NCET-10-0286)

Abstract: A ‘‘two-in-one’’ approach, namely, through deposition of APTES-functionalized Al2O3 particles onto a coarse macroporous support, was applied to synthesize zeolitic imidazolate tramework-7 (ZIF-7) membranes. The effect of molar ratio of APTES and Al2O3 particles on the formation of ZIF-7 membranes were investigated in detail.
When nAPTES:nAl2O3=1:3, the obtained continuous and thin ZIF-7 membrane with thickness ranging from 2 to 3 μm exhibited H2 permeance at 4.70×10-7 mol/(m2·s·Pa). Its ideal molecular sieving selectivity of H2/CO2 and H2/N2 was at 5.87 and 4.59, respectively.

Key words: functional inorganic particles, ZIF-7 membrane, gas separation

CLC Number: