Efficient Complete Oxidation of Acetaldehyde into CO<sub>2</sub> over CuBi<sub>2</sub>O<sub>4</sub>/WO<sub>3</sub> Composite Photocatalyst under Visible and UV Light Irradiation
Takeo AraiEnergy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan, and Nissan Research Center, Nissan Motor Co., Ltd., 1 Natsushima, Yokosuka, Kanagawa 237-8523, JapanMasatoshi YanagidaNational Institute of Advanced Industrial Science and TechnologyYoshinari KonishiNational Institute of Advanced Industrial Science and TechnologyYasukazu IwasakiNational Institute of Advanced Industrial Science and TechnologyHideki SugiharaEnergy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan, and Nissan Research Center, Nissan Motor Co., Ltd., 1 Natsushima, Yokosuka, Kanagawa 237-8523, JapanKazuhiro SayamaNational Institute of Advanced Industrial Science and Technology
2007en
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ABI
Annotatsiya
A highly efficient and visible light responsive photocatalyst was developed by combining the p-type semiconductor CuBi2O4 and the n-type semiconductor WO3. CuBi2O4/WO3 showed higher reactivity than typical TiO2-based photocatalysts for the complete oxidation of acetaldehyde into CO2 under both UV and visible light. From photoelectrochemical measurements, the reaction mechanism is explained based on the model of the p−n photochemical diode for reductivity/oxdizability improvement.
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