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- Title
Performance of CO<sub>2</sub> adsorption by hybrid amine-functionalized MCM-41.
- Authors
Zhoubing Cheng; Qunpeng Cheng
- Abstract
In this study, the performance of modified MCM-41 adsorbents by impregnation and grafting modification with 3-aminopropyltriethoxysilane (APTS) and polyethyleneimine (PEI) on the CO2 adsorption was investigated. The results showed that the synergistic effect of APTS and PEI could improve the adsorption performance and thermal stability of the MCM-41 adsorbents. The CO2 adsorption capacity of mixed amine-modified MCM-41 adsorbents was higher than single amine modified MCM-41 adsorbents. The maximum adsorption capacity (2.6512 mmol g-1) was obtained at MCM-41-APTS-5%-PEI-50%. Meanwhile, the adsorbents modified by mixed amine showed good cycle regeneration stability after five times of CO2 adsorption/desorption cycling.
- Subjects
ADSORPTION (Chemistry); ADSORPTION capacity; DESORPTION; THERMAL stability; POLYETHYLENEIMINE; SORBENTS
- Publication
Desalination & Water Treatment, 2022, Vol 254, p142
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2022.28369