Materials 2013, 6(3), 981-999; doi:10.3390/ma6030981

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

1,2email, 1email, 1email, 1email, 1email, 1,* email, 1,3,* email and 4,* email
1 State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2 Graduated University of Chinese Academy of Sciences, Beijing 100049, China 3 Low Carbon Conversion Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201203, China 4 ShanXi Lu'an Mining Industry (group) Co., Ltd, Changzhi 064204, China
* Authors to whom correspondence should be addressed.
Received: 14 January 2013; in revised form: 19 February 2013 / Accepted: 25 February 2013 / Published: 12 March 2013
(This article belongs to the Special Issue Advances in Mesoporous Materials)
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Abstract: 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.
Keywords: 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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