Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)
- 2014.02a
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- Pages.159.1-159.1
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- 2014
Preparing Hydrophobic Mesoporous Silica as an Effective Pre-concentration Agent Under Humid Condition
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Park, Eun Ji
(Department of Chemistry, Sungkyunkwan University) ;
- Cho, Youn Kyoung (Department of Chemistry, Sungkyunkwan University) ;
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Jeong, Myung-Geun
(Department of Chemistry, Sungkyunkwan University) ;
- Kim, Dae Han (Department of Chemistry, Sungkyunkwan University) ;
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Jeong, Bora
(Department of Chemistry, Sungkyunkwan University) ;
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Yoon, Hye Soo
(Department of Chemistry, Sungkyunkwan University) ;
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Seo, Hyun Ook
(Department of Chemistry, Sungkyunkwan University) ;
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Kim, Young Dok
(Department of Chemistry, Sungkyunkwan University)
- Published : 2014.02.10
Abstract
We report a simple method for preparing hydrophobic mesoporous silica and its use as a pre-concentrating agent of gas analytes. Hydrophobic mesoporous silica was prepared by coating PDMS (polydimethylsiloxane) thin layer on commercial mesoporous silica with thermal deposition method in a sealed chamber. By using this method, we were able to coat PDMS layer on inner-walls of pores larger than 15 nm. Also, contact angle measured on a surface consisting of PDMS-coated mesoporous silica exceeded