Synthesis of Stable Tetraethylenepentamine-Functionalized Mesocellular Silica Foams for CO2 Adsorption

Shou-Heng Liu; Wei-Che Hsiao; Chia-Chin Chiang

doi:10.1155/2013/651901

Journal of Chemistry (Jan 2013)

Synthesis of Stable Tetraethylenepentamine-Functionalized Mesocellular Silica Foams for CO2 Adsorption

Shou-Heng Liu,
Wei-Che Hsiao,
Chia-Chin Chiang

Affiliations

Shou-Heng Liu: Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan
Wei-Che Hsiao: Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan
Chia-Chin Chiang: Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan

DOI: https://doi.org/10.1155/2013/651901
Journal volume & issue: Vol. 2013

Abstract

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Various amounts of tetraethylenepentamine (TEPA) loading on mesocellular silica foams (TEPA-MSF-x) were fabricated via a chemical grafting method in this study. The performance of dry 15% adsorption on the TEPA-MSF-x was tested by a microbalance at 348 K under ambient pressure. Experimentally, adsorption capacities of the TEPA-MSF-x sorbents were found to be 28.5–66.7 mg /g-sorbent. In addition, TEPA-MSF-x sorbents exhibited enhanced durability during repeated adsorption-desorption cycles compared to the conventional sorbents prepared by a physical impregnation method. This significant enhancement in the stability of adsorption-desorption process was most likely due to the decreased leaching of TEPA which is covalently tethered to the surface of MSF.

Published in Journal of Chemistry

ISSN: 2090-9063 (Print); 2090-9071 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Science: Chemistry
Website: https://onlinelibrary.wiley.com/journal/2962

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