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Received May 17, 2008
Accepted November 12, 2008
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CVD법으로 제조된 산화티탄 볼과 마이크로웨이브를 이용한 메틸렌블루 수용액의 광촉매분해
The Microwave-assisted Photocatalytic Degradation of Methylene Blue Solution Using TiO2 Balls Prepared by Chemical Vapor Deposition
순천대학교 환경공학과, 540-742 전남순천시 매곡동 315 1한국에너지기술연구원 청정시스템연구센터, 305-343 대전시 유성구 가정로 102 2세종대학교 나노공학과, 143-747 서울시 광진구 군자동 98
Department of Environmental Engineering, Sunchon National University, 315 Maegok-dong, Sunchon, Chonnam 540-742, Korea 1Clean Energy System Research Center, Korea Institute of Energy Research, 102 Gajeon-ro, Yuseong-gu, Daejeon 305-343, Korea 2Department of Nano Science and Technology, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Korea
jsc@sunchon.ac.kr
Korean Chemical Engineering Research, December 2008, 46(6), 1063-1068(6), NONE Epub 29 December 2008
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Abstract
화학기상증착법으로 제조된 TiO2 광촉매 볼을 이용하여 마이크로웨이브와 자외선을 동시에 조사시켜 메틸렌블루 수용액의 광촉매 분해실험을 하였다. 광촉매반응에 마이크로웨이브와 자외선을 같이 사용하기 위하여 마이크로웨이브에 의해 방전되는 무전극자외선램프를 개발하였다. 실험결과 마이크로웨이브의 강도, 반응수용액의 순환유속 그리고 산화보조제의 첨가량이 증가할수록 광촉매분해속도가 증가하였다. 특히 과산화수소를 첨가한 광촉매반응에 마이크로웨이브를 부가한 실험의 반응속도상수는 0.0197 min^(-1)이고 광촉매반응에 과산화수소만을 첨가한 경우의 속도상수는 0.0061 min^(-1)로 약 3배정도 높은 값을 나타내었다. 본 연구의 결과로부터 광촉매반응에 마이크로웨이브가 미치는 영향을 정량적으로 평가하기는 어렵지만, 과산화수소가 첨가되는 광촉매반응에 마이크로웨이브의 조사가 매우 중요한 인자인 것을 알 수 있었다.
The photocatalytic degradation of methylene blue water solution was carried out by irradiating microwave and UV light simultaneously using TiO2 photocatalyst balls prepared by Chemical Vapor Deposition method. A microwave-discharged electrodeless UV lamp was developed to use microwave and UV simultaneously for photocatalytic reactions. The results of photocatalytic degradation of methylene blue showed that the decomposition rate increased with the microwave intensity, the circulating fluid velocity and auxiliary oxidizing agents added. Especially, the rate constant of H2O2-added photocatalytic reaction increased about three times from 0.0061 min^(-1) to 0.0197 min^(-1) when microwave was additionally irradiated. This study demonstrates that the microwave irradiation can play a very important role in photocatalytic degradation using peroxides although it is not easy to quantitatively assess the effect of microwave on photocatalytic reactions from the experimental data of this study.
References
Glaze WH, Kang JW, Chapin DH, Ozone Sci. Eng., 9, 335 (1987)
Kuo C, Chen S, Ind. Eng. Chem. Res., 35, 3973 (2001)
Lau IWC, Wang P, Fang HHP, J. Environ. Eng., 127, 666
Matthews RW, Wat. Res., 20, 569 (1986)
Lee DJ, Senseman SA, Sciumbato AS, Jung SC, Krutz LJ, J. Agric. Food Chem., 51, 2659 (2003)
Moctezuma E, Leyva E, Palestino G, Lasa HD, J. Photochem. Photobiol. A: Chemistry, 186, 71 (2007)
Horikoshi S, Watanabe N, Onishi H, Hidaka H, Serpone N, Appl. Catal. B: Environ., 37(2), 117 (2002)
Horikoshi S, Hidaka H, Serpone N, J. Photochemistry and photobiology A; chemistry, 159, 289 (2003)
Liu YZ, Yang SG, Hong J, Sun C, J. Hazard. Mater., 142(1-2), 208 (2007)
Jung SC, Kim BH, Kim SJ, Maishi N, Cho YI, Chem. Vap. Deposition, 11, 137 (2005)
Jung SC, Kim SJ, Imaishi N, Cho YI, Appl. Catal. B: Environ., 55(4), 253 (2005)
Jung SC, Korean J. Chem. Eng., 25(2), 364 (2008)
Kuo C, Chen S, Ind. Eng. Chem. Res., 35, 3973 (2001)
Lau IWC, Wang P, Fang HHP, J. Environ. Eng., 127, 666
Matthews RW, Wat. Res., 20, 569 (1986)
Lee DJ, Senseman SA, Sciumbato AS, Jung SC, Krutz LJ, J. Agric. Food Chem., 51, 2659 (2003)
Moctezuma E, Leyva E, Palestino G, Lasa HD, J. Photochem. Photobiol. A: Chemistry, 186, 71 (2007)
Horikoshi S, Watanabe N, Onishi H, Hidaka H, Serpone N, Appl. Catal. B: Environ., 37(2), 117 (2002)
Horikoshi S, Hidaka H, Serpone N, J. Photochemistry and photobiology A; chemistry, 159, 289 (2003)
Liu YZ, Yang SG, Hong J, Sun C, J. Hazard. Mater., 142(1-2), 208 (2007)
Jung SC, Kim BH, Kim SJ, Maishi N, Cho YI, Chem. Vap. Deposition, 11, 137 (2005)
Jung SC, Kim SJ, Imaishi N, Cho YI, Appl. Catal. B: Environ., 55(4), 253 (2005)
Jung SC, Korean J. Chem. Eng., 25(2), 364 (2008)
