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Updated: Jul 1, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
Enhancement of CO2 adsorption and separation in basic ionic liquid/ZIF-8 with core-shell structure
Shiyu Nie1, Encheng Liu2, Fengfeng Chen1,3
1Lab of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China. cff1993@zstu.edu.cn.
Abstract:
A novel strategy was proposed to improve the performance of gas separation in nano-materials, by fabricating a core-shell structure out of the basic ionic liquid ([Emim]2[IDA]) and zeolitic imidazolate framework (ZIF-8). The [Emim]2[IDA]/ZIF-8 exhibits a remarkable CO2 adsorption capacity of 14 cm3 g-1 at 298 K and 20 kPa, the ideal selectivity of CO2/N2 is as high as 104 and CO2/CH4 is 348 at 298 K and 100 kPa, which are much higher than the CO2 adsorption capacity (4.3 cm3 g-1) and the selectivity (SCO = 7.4, SCO = 2.7) of ZIF-8. This work could pave the way for designing advanced nanostructures tailored for gas separation.
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