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Hierarchical Zeolites with Amine‐Functionalized Mesoporous Domains for Carbon Dioxide Capture
Author(s) -
Nguyen Tien Hoa,
Kim Sungjune,
Yoon Minyoung,
Bae TaeHyun
Publication year - 2016
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201600004
Subject(s) - mesoporous material , adsorption , zeolite , amine gas treating , chemical engineering , carbon dioxide , chemistry , carbon fibers , molecular sieve , materials science , catalysis , organic chemistry , composite material , composite number , engineering
To prepare materials with high CO 2 adsorption, a series of hierarchical LTA zeolites possessing various mesopore spaces that are decorated with alkylamines was designed and synthesized. The highest CO 2 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 CO 2 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 CO 2 uptake capacity and recyclability in dynamic flow conditions.