Optimization of a MOF Blended with Modified Polyimide Membrane for High-Performance Gas Separation

Yushu Zhang; Hongge Jia; Qingji Wang; Wenqiang Ma; Guoxing Yang; Shuangping Xu; Shaobin Li; Guiming Su; Yanqing Qu; Mingyu Zhang; Pengfei Jiang

doi:10.3390/membranes12010034

Membranes (Dec 2021)

Optimization of a MOF Blended with Modified Polyimide Membrane for High-Performance Gas Separation

Yushu Zhang,
Hongge Jia,
Qingji Wang,
Wenqiang Ma,
Guoxing Yang,
Shuangping Xu,
Shaobin Li,
Guiming Su,
Yanqing Qu,
Mingyu Zhang,
Pengfei Jiang

Affiliations

Yushu Zhang: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China
Hongge Jia: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China
Qingji Wang: CNPC Reasearch Institute of Safety & Environment Technology, Changping District, Beijing 102249, China
Wenqiang Ma: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China
Guoxing Yang: Synthetic Resin Laboratory, Daqing Petrochemical Research Center, Petrochemical Research Institute, No. 2, Chengxiang Road, Wolitun, Longfeng District, Daqing 163714, China
Shuangping Xu: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China
Shaobin Li: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China
Guiming Su: Institute of Advanced Technology, Heilongjiang Academy of Sciences, No. 52, Renhe Street, Nangang District, Harbin 150009, China
Yanqing Qu: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China
Mingyu Zhang: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China
Pengfei Jiang: Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials, Department of Chemical and Chemical Engineering, Qiqihar University, Wenhua Street, Qiqihar 161006, China

DOI: https://doi.org/10.3390/membranes12010034
Journal volume & issue: Vol. 12, no. 1
p. 34

Abstract

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The preparation, characterization and gas separation properties of mixed matrix membranes (MMMs) were obtained from polyimide capped with ionic liquid and blended with metal-organic frameworks (MOFs). The synthesized MOF was amine functionalized to produce UiO-66-NH2, and its amino group has a higher affinity for CO2. Mixed matrix membranes exhibited good membrane forming ability, heat resistance and mechanical properties. The polyimide membrane exclusively capped by ionic liquid exhibited good permselectivity of 74.1 for CO2/CH4, which was 6.2 times that of the pure polyimide membrane. It is worth noting that MMM blended with UiO-66-NH2 demonstrated the highest ideal selectivity for CO2/CH4 (95.1) with a CO2 permeability of 7.61 Barrer, which is close to the 2008 Robeson upper bound. The addition of UiO-66-NH2 and ionic liquid enhanced the permselectivity of MMMs, which may be one of the promising technologies for high performance CO2/CH4 gas separation.

Published in Membranes

ISSN: 2077-0375 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.mdpi.com/journal/membranes

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