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Indexed by:会议论文

Date of Publication:2011-10-26

Included Journals:EI、CPCI-S、Scopus

Volume:465

Page Number:215-219

Key Words:Photocatalysis; Visible Light; Surface Plasmon Resonance Effect; Au; TiO2

Abstract:Au-TiO2 composite photocatalysis material was fabricated by the photodeposition method. The SEM and TEM images demonstrate that Au-TiO2 NPs are with inerratic geometry and their diameters are in the range of 10 nm to 20 nm. The UV-vis spectra shows the strong peaks in 200-400 nm and near 550 nm which are attributed to the characteristic absorption peak of TiO2 and the strong surface-plasmon-resonance of Au NPs, respectively. Under visible light irradiation, the phenol degradation dynamics constant on Au-TiO2 was 0.008 min(-1) which was 4 times of that on Degussa P25. The effects of Au amount on the photocatalytic capability of Au-TiO2 were also investigated.