Synthesis of Stable Tetraethylenepentamine‐Functionalized Mesocellular Silica Foams for CO2 Adsorption | Zendy

ShouHeng Liu | Zendy; Wei-Che Hsiao | Zendy; Chia-Chin Chiang | Zendy

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

Author(s) -

ShouHeng Liu,

Wei-Che Hsiao,

Chia-Chin Chiang

Publication year - 2012

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/651901

Subject(s) - chemistry , adsorption , sorbent , desorption , grafting , chemical stability , leaching (pedology) , chemical engineering , covalent bond , nuclear chemistry , chromatography , organic chemistry , polymer , engineering , environmental science , soil science , soil water

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

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