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
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.
