화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.27, No.2, 672-676, February, 2010
DOI10.1007/s11814-010-0060-7  Export Citation
Photo-catalytic degradation of rhodamine B using microwave powered electrodeless discharge lamp
Jeong-Seok Chae, Dong-Suk Jung, Yeong-Seon Bae, Sung Hoon Park, Do-Jin Lee1, Sun-Jae Kim2, Byung Hoon Kim3, and Sang-Chul Jung†
  • Department of Environmental Engineering, Sunchon National University, Sunchon 540-742, Korea
  • 1Department of Agricultural Education, Sunchon National University, Sunchon 540-742, Korea
  • 2Department of Nano Science and Technology, Sejong University, Seoul 143-747, Korea
  • 3Department of Dental Materials, School of Dentistry, MRC Center, Chosun University, Gwangju 501-759, Korea
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A microwave discharge electrodeless lamp (MDEL) was used as the light source for microwave assisted TiO2 photo-catalysis to degrade rhodamine B. A MDEL filled with low pressure mercury gas has been developed for the photo-catalytic treatment of water pollutants over TiO2 balls. TiO2 balls produced by the chemical vapor deposition method were used. The degradation reaction rate was shown to be higher with higher microwave intensity and with a larger amount of O2 gas addition. The effect of addition of H2O2 was not significant when photo-catalysis was used without additional microwave irradiation or when microwave was irradiated without the use of photo-catalysts. When H2O2 was added under simultaneous use of photo-catalysis and microwave irradiation, however, considerably higher degradation reaction rates were observed. This result suggests that there is a synergy effect when the constituent techniques are applied together.
Keywords:Photo-catalyst;Microwave;UV;Dye;Chemical Vapor Deposition
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