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Citation: Zhang Jin-Long, Zhao Wen-Juan, Chen Hai-Jun, Xu Hua-Sheng, Chen Ai-Ping, Anpo Masa-Kazu. Study of Loaded Photocatalysts by Precious Metals on the Photocatalytic Reactivity[J]. Acta Physico-Chimica Sinica, ;2004, 20(04): 424-427. doi: 10.3866/PKU.WHXB20040420 shu

Study of Loaded Photocatalysts by Precious Metals on the Photocatalytic Reactivity

1.
Institute of Fine Chemicals, East China University of Science and Technology, Shanghai　200237; 1Key Laboratory for Ultrofine Materials of Ministry of Education, East China University of Science and Technology, Shanghai　200237;Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai,Osaka　599-8531, Japan

Received Date: 12 September 2003
Available Online: 15 April 2004

The functional photocatalysts of high photocatalytic reactivity under visible light irradiation were prepared by loading precious metals on the vanadium ion implanted titanium oxide. The photocatalytic hydrolysis reaction of methylacetylene was studied under the visible light and solar beam. Those modified titanium oxides were used to construct conversion system of solar to chemical energy. It was found from experimental results that existence of precious metals on the V/TiO2 photocatalysts has the advantage of promotion of hydrogenation reaction in photocatalytic hydrolysis reaction of methylacetylene, and increase of propene product. The photocatalytic reactivities under visible light irradiation have a close relationship with oxidation states of the precious metals on titanium oxide and it is necessary for increasing photcatalytic reactivities that precious metals be reduced to 0 valence.
- Titanium oxide;Photocatalyst;Visible light;Precious metal loaded;　Ion implant
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沈阳化工大学材料科学与工程学院沈阳 110142

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