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Open AccessArticle

Grafting of Amines on Ethanol-Extracted SBA-15 for CO2 Adsorption

by 1,2, 1, 1, 1, 1, 1,*, 1,3,* and 4,*
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
Graduated University of Chinese Academy of Sciences, Beijing 100049, China
Low Carbon Conversion Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201203, China
ShanXi Lu'an Mining Industry (group) Co., Ltd, Changzhi 064204, China
Authors to whom correspondence should be addressed.
Materials 2013, 6(3), 981-999;
Received: 14 January 2013 / Revised: 19 February 2013 / Accepted: 25 February 2013 / Published: 12 March 2013
(This article belongs to the Special Issue Advances in Mesoporous Materials)
SBA-15 prepared via ethanol extraction for template removing was grafted with three kinds of amine precursors (mono-, di-, tri-aminosilanes) to synthesis new CO2 adsorbents. The SBA-15 support and the obtained adsorbents were characterized by X-ray diffraction (XRD), small-angle X-ray scattering (SAXS), N2 adsorption/desorption, thermogravimetry (TG), elemental analysis, Fourier transform infrared (FTIR) spectrometry, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was found that, except higher silanol density, the ethanol-extracted SBA-15 support possessed a more regular mesophase and thicker walls than traditionally calcined samples, leading to a good stability of the adsorbent under steam treatment. The adsorption capacity of different amine-grafted samples was found to be influenced by not only the surface amine density, but also their physiochemical properties. These observations provide important support for further studies of applying amine-grafted adsorbents in practical CO2 capture process. View Full-Text
Keywords: amine; grafting; ethanol extraction; SBA-15; CO2 adsorption amine; grafting; ethanol extraction; SBA-15; CO2 adsorption
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MDPI and ACS Style

Li, Y.; Sun, N.; Li, L.; Zhao, N.; Xiao, F.; Wei, W.; Sun, Y.; Huang, W. Grafting of Amines on Ethanol-Extracted SBA-15 for CO2 Adsorption. Materials 2013, 6, 981-999.

AMA Style

Li Y, Sun N, Li L, Zhao N, Xiao F, Wei W, Sun Y, Huang W. Grafting of Amines on Ethanol-Extracted SBA-15 for CO2 Adsorption. Materials. 2013; 6(3):981-999.

Chicago/Turabian Style

Li, Yong; Sun, Nannan; Li, Lei; Zhao, Ning; Xiao, Fukui; Wei, Wei; Sun, Yuhan; Huang, Wei. 2013. "Grafting of Amines on Ethanol-Extracted SBA-15 for CO2 Adsorption" Materials 6, no. 3: 981-999.

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