期刊
RSC ADVANCES
卷 3, 期 36, 页码 15566-15570出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra43246g
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资金
- Singapore National Research Foundation Fellowship [NRF2009NRF-RF001-015]
- Singapore National Research Foundation CREATE program-Singapore Peking University Research Centre for a Sustainable Low-Carbon Future
- Centre of Excellence for Silicon Technologies (A*Star SERC) [112 351 0003]
Based on the imperativeness of CO2 capture and sequestration to reduce increasing anthropogenic CO2 emissions, an efficient CO2-selective sorbent, MIL-101-triazo-NH2, was developed by grafting CO2-philic triazole and amine groups into a highly stable mesoporous metal-organic framework, MIL-101, via click chemistry. Compared to pristine MIL-101, MIL-101-triazo-NH2 exhibits a remarkably improved CO2 uptake capability up to 128.3 cm(3) g(-1) (20.1 wt%) at 1 atm and 273 K, and a significantly enhanced selectivity towards CO2 over N-2. The improved performance of MIL-101-triazo-NH2 on both the CO2 uptake capability and selectivity demonstrates that the construction of analogues of solution-based absorbents through clicked post-modification of porous materials could be a reliable strategy for the fabrication of CO2-selective solid adsorbents with optimized separation efficiency and easy regeneration ability.
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