Synthesis of Stable Tetraethylenepentamine-Functionalized Mesocellular Silica Foams for CO2 AdsorptionReport as inadecuate




Synthesis of Stable Tetraethylenepentamine-Functionalized Mesocellular Silica Foams for CO2 Adsorption - Download this document for free, or read online. Document in PDF available to download.

Journal of ChemistryVolume 2013 2013, Article ID 651901, 6 pages

Research Article

Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan

Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan

Received 28 June 2012; Accepted 16 August 2012

Academic Editor: Danielle Ballivet-Tkatchenko

Copyright © 2013 Shou-Heng Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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.





Author: Shou-Heng Liu, Wei-Che Hsiao, and Chia-Chin Chiang

Source: https://www.hindawi.com/



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