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Effects of Calcination Temperature on the Photocatalytic Activity of In–TiO2 Nano–material |
ZHANG Wenjie, CHEN Jinlei, WANG Hong, HE Hongbo |
1.School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159
2.Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 |
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Cite this article:
ZHANG Wenjie CHEN Jinlei WANG Hong HE Hongbo. Effects of Calcination Temperature on the Photocatalytic Activity of In–TiO2 Nano–material. Chinese Journal of Materials Research, 2012, 26(6): 561-566.
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Abstract 3%In doped TiO2 nano–material was prepared by sol–gel method, and powder X–ray diffraction (XRD), scanning electron microscope (SEM), FT–IR, and N2 adsorption–desorption were employed to characterize the material calcined at different temperature. Photocatalytic degradation of methyl orange under UV–light irradiation on the materials was also examined. The results show that all the samples present anatase TiO2 phase, and no apparent impact on surface morphology of the samples was
observed. With increasing calcination temperature, TiO2 crystallite size and average pore size increased gradually, while the special surface area decreased. The special surface area and average pore size are 94.4 m2/g and 10.3 nm for the 3%In–TiO2 sample calcinated at 400oC. Meanwhile, the sample also have the optimal photocatalytic degradation activity, and methyl orange degradation rate is 43.1% after 30 min of UV–light irradiation.
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Received: 09 October 2012
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Fund: Supported by National Natural Science Foundation of China No.41271251 and Liaoning Science and Technology Project No.2010229002. |
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