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In-Situ Infrared Study of CO2 Adsorption on SBA-15 Grafted with γ-(Aminopropyl)triethoxysilane
Abstract
CO 2 adsorption/desorption on SBA-15 grafted with γ-(aminopropyl)triethoxysilane (APTS) has been studied by infrared spectroscopy coupled with temperature-programmed desorption. SBA-15, a mesoporous silica material with a uniform pore size of 21 nm and a surface area of 200−230 m 2 /g, provides an OH functional group for grafting of γ-(aminopropyl)triethoxysilane. The amine-grafted SBA-15 adsorbed CO 2 as carbonates and bicarbonates with a total capacity of 200−400 μmol/g. The heat of CO 2 desorption was determined to be 3.2−4.5 kJ/mol in the presence of H 2 O and 6.6−11.0 kJ/mol in the absence of H 2 O during temperature-programmed desorption. Repeated CO 2 adsorption/desorption CO 2 cycles shifted the desorption peak temperature downward and decreased the heat of CO 2 adsorption.
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Cited by
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Yang, Z.-Z., He, L.-N., Gao, J., Liu, A.-H., & Yu, B. (2012) · Energy & Environmental Science · doi:10.1039/c2ee02774g · Cited by 520
FTIR Study of CO2 Adsorption on Amine-Grafted SBA-15: Elucidation of Adsorbed Species
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Lee, W. R., Hwang, S. Y., Ryu, D. W., Lim, K. S., Han, S. S., Moon, D., Choi, J., & Hong, C. S. (2014) · Energy Environ. Sci. · doi:10.1039/c3ee42328j · Cited by 329
Ethylenediamine-Modified SBA-15 as Regenerable CO2 Sorbent
Zheng, F., Tran, D. N., Busche, B. J., Fryxell, G. E., Addleman, R. S., Zemanian, T. S., & Aardahl, C. L. (2005) · Industrial & Engineering Chemistry Research · doi:10.1021/ie049488t · Cited by 261
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Bhagiyalakshmi, M., Yun, L. J., Anuradha, R., & Jang, H. T. (2010) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2009.10.097 · Cited by 236
Development of TREN dendrimers over mesoporous SBA-15 for CO2 adsorption
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Metadata
- Authors
- Chang, A. C. C., Chuang, S. S. C., Gray, M., & Soong, Y.
- Venue
- Energy & Fuels
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-02-07
- Volume
- 17
- Issue
- 2
- Pages
- 468-473
- ISSN
- 0887-0624 (ISSN-L)
- 1520-5029
- OpenAlex
- W2007489056
- Cited by
- 389
- References
- 0
- FWCI
- 19.71
- Type
- journal article
- Language
- en
- Open access
- closed
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