Journal
JOURNAL OF MATERIALS RESEARCH
Volume 31, Issue 4, Pages 516-525Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/jmr.2016.40
Keywords
absorbent; adsorption; nanostructure
Categories
Funding
- National Science Foundations of China [21101017, 21571024, 21276029, 51574044]
- Qing Lan Project of Jiangsu Province [SCZ1409700002]
- Jiangsu Province Science and Technology Support Program [BE2011651]
- Key University Science Research Project of Jiangsu Province [11KJA610002]
- Jiangsu Province 333 High Level Personnel Training Project of Scientific [BRA2015375]
- Industry and Research Perspective in Jiangsu Province [BY2015027-01]
- Opening Fund from Provincial Key Laboratory of Oil & Gas Storage and Transportation Technology, Jiangsu, P. R. China [cy1201]
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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.
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