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Preparation of ZIF-8 Membrane by Vapor Phase Conversion Method and Its Gas Separation Performance

Authors： ZHAO Jinyue，LU Jinming，YANG Jianhua，LIU Yi，WANG Jinqu，ZHANG Yan

Units： School of chemical engineering，Dalian University of Technology，Dalian 116024，Liaoning, China

KeyWords： ZIF-8 membrane; In-pore membrane formation; gas separation; macroporous carrier

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2022,42(6):14-21

Abstract：

In this paper, a dense ZIF-8 membrane was prepared inside the macroporous support by the restricted internal diffusion method, and its synthesis mechanism was explored. The results showed that when methanol was used as the solvent, zinc oxide gel was used, the internal diffusion time was 10 s, and the crystallization time was 10 h at 170 °C, dense membranes were successfully prepared in the pores of the tubular macroporous support. The results of single-component gas permeation experiments showed that the permeation rate of H2 is 5.53×10 -7 mol/(m2·s·Pa) at 25 ℃ and 0.1 MPa, and the ideal selectivities of H2/CO2, H2/N2 and H2/CH4 were 13.20, 12.96 and 12.89, respectively.

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AuthorIntro：

赵锦岳（1997-），男，山东潍坊人，主要从事ZIF-8膜的合成及其气体分离性能探究

Reference：

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