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International Journal of Photoenergy
Volume 2013, Article ID 875456, 10 pages
http://dx.doi.org/10.1155/2013/875456
Research Article

Effect of Different Calcination Temperatures on the Structural and Photocatalytic Performance of Bi-TiO2/SBA-15

1College of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
2College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
3Department of Chemistry, Harbin Institute of Technology, Harbin 150001, China

Received 17 May 2013; Revised 27 June 2013; Accepted 28 June 2013

Academic Editor: Huogen Yu

Copyright © 2013 Jing Ma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The new novel material Bi-TiO2/SBA-15 was synthesized by an easy wet impregnation method. A combination of XRD, XPS, Raman, N2 adsorption-desorption isotherm measurement, TEM, and solid state UV-Vis spectroscopy has been used to characterize the Bi-TiO2/SBA-15 material. It was found that SBA-15 retained the ordered hexagonal mesostructure after incorporation of TiO2 and Bi. The photodecomposition of rhodamine B (RhB) in aqueous medium was selected to evaluate the photocatalytic performance of Bi-TiO2/SBA-15 under visible light irradiation ( nm). The experiment results indicated that Bi-TiO2/SBA-15 exhibited higher photocatalytic activities than pure TiO2 and Bi2O3. The influences of calcination temperature were studied. It strongly influenced the activity of the samples. The sample calcined at 550°C shows the highest photocatalytic activity in the decomposition of RhB under visible light. The catalyst preserved almost its initial photocatalytic activity after six reuses.