期刊
CHEMICAL SCIENCE
卷 3, 期 7, 页码 2224-2229出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2sc20356a
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资金
- King Abdullah University of Science and Technology (KAUST)
We report the use of silicon oxynitrides as novel adsorbents for CO2 capture. Three series of functionalized materials based on KCC-1, SBA-15 and MCM-41 with Si-NH2 groups were prepared using a simple one-step process via thermal ammonolysis using ammonia gas, and they demonstrated excellent CO2 capture capabilities. These materials overcome several limitations of conventional amine-grafted mesoporous silica. They offer good CO2 capture capacity, faster adsorption-desorption kinetics, efficient regeneration and reuse, more crucially excellent thermal and mechanical stability even in oxidative environments, and a clean and green synthesis route, which allows the overall CO2 capture process to be practical and sustainable.
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