Hierarchical Zeolites with Amine-Functionalized Mesoporous Domains for Carbon Dioxide Capture

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To prepare materials with high CO2 adsorption, a series of hierarchical LTA zeolites possessing various mesopore spaces that are decorated with alkylamines was designed and synthesized. The highest CO2 uptake capacity was achieved when (3-aminopropyl)trimethoxysilane (APTMS) was grafted onto the hierarchical LTA zeolite having the largest mesopores. Owing to the contributions of both alkylamine groups grafted onto the mesopore surfaces and active sites in the LTA zeolites, the amount of CO2 that can be taken up on these materials is much higher than for conventional aminosilicas such SBA-15 and MCM-41. Furthermore, the adsorbent shows good CO2 uptake capacity and recyclability in dynamic flow conditions.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2016-03
Language
English
Article Type
Article
Citation

CHEMSUSCHEM, v.9, no.5, pp.455 - 461

ISSN
1864-5631
DOI
10.1002/cssc.201600004
URI
http://hdl.handle.net/10203/262298
Appears in Collection
CBE-Journal Papers(저널논문)
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