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VOC adsorption and desorption behavior of hydrophobic, functionalized SBA-15

Published online by Cambridge University Press:  17 February 2016

Hongning Wang ,
Tao Wang ,
Lu Han ,
Mei Tang ,
Jing Zhong ,
Weiqiu Huang  and
Ruoyu Chen
Hongning Wang
Affiliation:
Advanced Catalytic and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China; and Jiangsu Provincial Key Laboratory of Oil and Gas Storage and Transportation Technology, Changzhou University, Changzhou, Jiangsu 213016, People's Republic of China
Tao Wang
Affiliation:
Advanced Catalytic and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
Lu Han
Affiliation:
Research and Development Center, China Tobacco Anhui Industrial Co., Ltd., Hefei, Anhui 230028, People's Republic of China
Mei Tang
Affiliation:
Advanced Catalytic and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
Jing Zhong
Affiliation:
Advanced Catalytic and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
Weiqiu Huang
Affiliation:
Jiangsu Provincial Key Laboratory of Oil and Gas Storage and Transportation Technology, Changzhou University, Changzhou, Jiangsu 213016, People's Republic of China
Ruoyu Chen*
Affiliation:
Advanced Catalytic and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
*
a) Address all correspondence to this author. e-mail: cxdcry@163.com
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Abstract

Hydrophobic functionalized SBA-15 has been developed via postsynthesis modification with trimethylchlorosilane (TMCS) and used for volatile organic compounds (VOCs) removal. The adsorption and desorption performance of different SBA-15-TMCS under static and dynamic conditions were investigated. Experimental results indicated that all samples showed a highly ordered two dimensional hexagonal mesostructure, and the organic groups were chemically incorporated into the pore surface of SBA-15 substrate. Comparing with commercial silica gel and activated carbon, SBA-15-TMCS shows higher static adsorption capacities of n-hexane and 93# gasoline, good recyclability, lower water vapor adsorption capacity, higher dynamic adsorption capacity, and longer breakthrough time. The high adsorption efficiency and stability of SBA-15-TMCS are associated with their hydrophobic surface, uniform and large pore size, high surface area and pore volume. The designed SBA-15-TMCS with high VOC adsorption capacity and recyclability shows great potential for VOC removal.

Keywords

absorbentadsorptionnanostructure
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 4 , 29 February 2016 , pp. 516 - 525
Copyright
Copyright © Materials Research Society 2016 

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