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Preparation and characterization zeolitic imidazolate framework membrane

Authors： SHANG Hongfei,LU Jinming,LIU Yi,YANG Jianhua,ZHANG Yan

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

KeyWords： ZIF-67 membrane; vapor phase method; gas separation; ideal selectivity

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2021,41(5):73-78

Abstract：

Metal-organic framework ZIF-67 membrane shows great potential application in gas separation due to the good thermal stability and chemical resistant . In this paper, high performance ZIF-67 membrane was synthesized by the vapor phase method. The effects of solvent and crystallization temperature on the membrane growth were investigated. In addition, X-ray diffractometer, scanning electron microscope and other characterization methods were used to analyse the morphology and thickness of the ZIF-67 membrane. It is found that a dense and pure phase ZIF-67 membrane was obtained on the tubular macroporous alumina support using methanol as solvent at 160℃ for 9h. Single-component gas permeation experiment was carried out under the conditions of 25℃ and 0.1Mpa. The results showed that the flux of H2 was 1.0×10-7 mol/（m2·s·Pa）and the ideal selectivities of H2/CO2, H2/N2 and H2/CH4 were 7.62, 11.0 and 10.9, respectively.

Funds：

中央高校基本科研业务费(DUT15ZD(G)03,DUT16RC(3)103)；国家自然科学基金项目(21776031)

AuthorIntro：

尚鸿飞（1995—），男，山西忻州人，硕士研究生,研究方向为ZIFs材料的制备与应用, E–mail：shanghf262@163.com

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