Preparation and Photocatalytic Performance of Pt-TiNT@@SiO2 by UV Photoreduction

doi:10.3724/SP.J.1088.2011.10501

Abstract

Abstract: The Pt nanoparticles-filled TiO₂-semiconductor nanocomposite samples were prepared. By using SiO₂-coated TiO₂ nanotube (TiNT@@SiO₂) as the support, Pt nanoparticles were successfully filled in TiNT@@SiO₂by a simple UV photoreduction method. The prepared Pt-TiNT@@SiO₂ samples were characterized by transmission electron microscopy, field emission scanning electron microscopy, energy dispersive spectrometer, and X-ray diffraction. The photocatalytic activity of the samples for methanol oxidation shows that 1.5%Pt-TiNT@@SiO₂ has the highest photo-activity. The mechanism of this inner-tube photocatalysis was discussed.

Key words: silica, titania, nanotube, platinum, photocatalysis, methanol, oxidation

WANG Sheng, GAO Yan-Long, WANG Tao, WANG Dong-Liang, DING Yuan-Wei, XU Xue-Fei, ZHANG Xiao-Long, JIANG Guo-Hua. Preparation and Photocatalytic Performance of Pt-TiNT@@SiO2 by UV Photoreduction[J]. Chinese Journal of Catalysis, 2011, 32(9): 1513-1518.

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URL: https://www.cjcatal.com/EN/10.3724/SP.J.1088.2011.10501

https://www.cjcatal.com/EN/Y2011/V32/I9/1513

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Preparation and Photocatalytic Performance of Pt-TiNT@@SiO2 by UV Photoreduction

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