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Citation: Li Dan-Zhen, Zheng Yi, Fu Xian-Zhi, Liu Ping. SO^2-₄/TiO₂ Catalyst Prepared by Microwave Method and the Research of its Photocatalytic Oxidation Activity[J]. Acta Physico-Chimica Sinica, ;2001, 17(03): 270-272. doi: 10.3866/PKU.WHXB20010318 shu

SO^2-₄/TiO₂ Catalyst Prepared by Microwave Method and the Research of its Photocatalytic Oxidation Activity

1.
Research Institute of Photocatalysis,Fuzhou University,Fuzhou　350002

Received Date: 8 October 2000
Available Online: 15 March 2001

/TiO2 catalysts were prepared by microwave,composite and conventional methods and characterized by Xray diffraction (XRD),N2 sorption analysis apply ing BET method,UVVis diffuse reflection spectroscopy(DRS) and laser Raman spec trum.The effect of different preparation methods on photocatalytic oxidation of C2H4 in air stream was studied.The results showed that the photocatalytic activi ty was obviously increased by the microwave method.The conversion of ethylene wa s 80％ contrast to those of composite and conventional methods being only 58％ a nd 41％,respectively.The catalyst by microwave method exhibited higher content o f anatase,higher specific surface area,larger band gap.The Raman scattering shif ted to low wave number direction helped to increase the transition probability o f photongenerated electrons and improved photoefficiency.
- Nano-titania;Photocatalytic oxidation;Microwave;Ethylene
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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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SO2-4/TiO2 Catalyst Prepared by Microwave Method and the Research of its Photocatalytic Oxidation Activity

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通讯作者: 陈斌, bchen63@163.com

SO^2-₄/TiO₂ Catalyst Prepared by Microwave Method and the Research of its Photocatalytic Oxidation Activity