화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.17, No.2, 223-228, March, 2011
DOI10.1016/j.jiec.2011.02.010  Export Citation
Preparation of porous carbon-doped TiO2 film by sol.gel method and its application for the removal of gaseous toluene in the optical fiber reactor
Moon-Sun Kim, Gang Liu1, Woo Kyoung Nam1, and Byung-Woo Kim1, †
  • Bio/Nano-Fusion Material Research Center, Sungkyunkwan University, Suwon 440-746, Republic of Korea
  • 1Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
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In this paper, we prepared the carbon-doped TiO2 (C-TiO2) film to enhance photodegradation efficiency (PE) of gaseous toluene under UV light. PE was affected by thickness of TiO2 film, specific surface area of TiO2, and carbon content doped on TiO2. The highest value of PE was 76% with 3.2-μm-thick film. By adding 0.435 g HPC, themaximum specific surface area of TiO2 was 230 m2 g^(-1) and PE with porous TiO2 film was 85-87% in 30 min. The specific surface area of conventional TiO2 was 55 m2 g^(-1) and PE with normal TiO2 film was 77-79%. To increase higher photodegradation capability of TiO2 under UV light, carbon was doped on TiO2 by sol.gel and combustion method. PE of gaseous toluene with porous carbon-doped TiO2 was 91-94% in 30 min and this was more enhanced by 18-19% than that with conventional TiO2. By-products derived from the photocatalytic oxidation of toluene were mostly amyl formate and ethyl formate, which are non-toxic.
Keywords:Photodegradation;Gaseous toluene;Porous TiO2 film;Carbon-doped TiO2
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