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

Membranes ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 34
Author(s):  
Yushu Zhang ◽  
Hongge Jia ◽  
Qingji Wang ◽  
Wenqiang Ma ◽  
Guoxing Yang ◽  
...  

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.

2018 ◽  
Vol 24 (49) ◽  
pp. 12796-12800 ◽  
Author(s):  
Anahid Sabetghadam ◽  
Xinlei Liu ◽  
Angelica F. Orsi ◽  
Magdalena M. Lozinska ◽  
Timothy Johnson ◽  
...  

2015 ◽  
Vol 3 (29) ◽  
pp. 15202-15213 ◽  
Author(s):  
Nguyen Tien-Binh ◽  
Hoang Vinh-Thang ◽  
Xiao Yuan Chen ◽  
Denis Rodrigue ◽  
Serge Kaliaguine

Hydroxyl-functionalized homo- and co-polyimides 6FDA–(DAM)x–(HAB)y (with x : y molar ratio of 1 : 0; 2 : 1; 1 : 1; 1 : 2) and two metal–organic frameworks (MOFs), MIL-53(Al) and NH2-MIL-53(Al) were synthesized for preparation of mixed matrix membranes (MMMs).


2014 ◽  
Vol 463 ◽  
pp. 82-93 ◽  
Author(s):  
Edson V. Perez ◽  
Kenneth J. Balkus ◽  
John P. Ferraris ◽  
Inga H. Musselman

2018 ◽  
Vol 42 (14) ◽  
pp. 12013-12023 ◽  
Author(s):  
Elahe Ahmadi Feijani ◽  
Hossein Mahdavi ◽  
Ahmad Tavassoli

A CuBTC (copper(ii) benzene-1,3,5-tricarboxylate) metal organic framework (MOF) and graphene oxide (GO) nanosheets were introduced into a semi-crystalline PVDF to produce mixed matrix membranes (MMMs) to promote gas separation performance.


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