期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 44, 页码 38919-38930出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b12697
关键词
MOFs; gas separation; cross-linked membrane; catalytic cycloaddition; polyurethane; ionic liquid
资金
- NSFC [21671122, 21604049, 21475078]
- Shandong Provincial Natural Science Foundation, China [BS2015CL015]
- Shandong Province Higher Educational Science and Technology Program [J15LC05]
- Taishan Scholar's Construction Project
Carbon dioxide capture and transformation are of great importance to make cuts in greenhouse gas emissions. Nanometal-organic frameworks (NMOFs) could serve as ideal fillers for polymer membranes owing to their structural diversity and regulable micro-environment of the nanocage. Herein, a bifunctional, robust, and chemically cross-linked NMOF-based membrane was successfully constructed by the postsynthetic polymerization of imidazolium-based ionic liquid (IL)-decorated UiO-66 type nanoparticles (NPs) and the isocyanate-terminated polyurethane oligomer under mild conditions. The IL-modified MOF-polymer membranes exhibit a highly selective adsorption for CO2 over N-2 and CH4. In addition, the obtained membrane can also be a highly active heterogeneous catalyst for CO2 transformation by cycloaddition with epoxide under an ambient pressure.
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