Photocatalytic performance of Pt-loaded TiO2 in the decomposition of gaseous ozone |
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| Institution: | 1. Department of Environmental Science, DongNam Health College, 937, Jungja-dong Jangan-gu, Suwon 440-714, South Korea;2. National Institute of Advanced Industrial Science and Technology, Institute for Environmental Management Technology, AIST Tsukuba West, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan;1. School of Energy and Power Engineering, North China Electric Power University, Baoding 071003, China;2. Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada;1. School of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China;2. Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China;3. School of Environment, Resources and Development, Asian Institute of Technology, Klongluang, Pathumthani 12120, Thailand;4. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China;2. School of Chemistry, Sun Yat-sen University, Guangzhou 510275, PR China |
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| Abstract: | Gas-phase catalytic and photocatalytic decomposition of ozone (O3) was investigated using TiO2 and Pt-loaded TiO2 (Pt/TiO2) at room temperature and atmospheric pressure. The nominal weight loading of Pt was less than 1 wt.%. Results of this study indicate that both the overall conversion of O3 to O2 and other products with UV irradiation and without UV irradiation (dark reaction) can be improved by using Pt-loaded TiO2. Photocatalytic conversion of O3 on pure TiO2 decreased with increasing water vapor. In contrast, Pt/TiO2 was active for the decomposition of ozone under the humidity condition at room temperature. |
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