Influence of surfactant on CO2 adsorption of amine-functionalized MCM-41. Issue 28 (19th December 2022)

• Record Type: Journal Article
• Authors: Huang, Wenwen; Liu, Jiacheng; Rao, Na; Fan, Guozhi; Yan, Juntao; Cheng, Qunpeng; Song, Guangsen
• Is Part Of: Environmental technology. Volume 43:Issue 28(2022)
• Page Start: 4545
• Page End: 4553
• Publication Date: 2022-12-19
• Subjects: Surfactant -- CO2 adsorption -- MCM-41 -- PEI -- amine-functionalized; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2021.1958012
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: Concerning the increasing greenhouse effect, the development of efficient CO2 adsorbents is very important. In this study, the influence of surfactant on the adsorption performance of amine-functionalized MCM-41 was analysed. The results showed that the residual amount of surfactant in MCM-41 was gradually decreased with the increase of calcination temperature which improved the pore structure. The maximum adsorption capacity (5.495 mmol/g) appeared at PEI-MCM-41-100°C indicated that the adsorption capacity could be improved under the function of surfactant. By calculating the diffusion coefficient of CO2 adsorption process in PEI-MCM-41-100/200/300/400/550°C, the diffusion resistance of CO2 was the lowest in PEI-MCM-41-100°C, which directly proved that the synergism of surfactant and organic amine could reduce the diffusion resistance of CO2 in the pore. GRAPHICAL ABSTRACT: UF0001