Study on the Photocatalyst Degradation of Methylene Blue by Using Nanometer-Sized TiO₂/Quartz Sand

Abstract:

In this research, the nanometer-sized TiO₂/quartz sand photocatalyst was prepared by sol-gel method. The structure of the composite samples was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). And the photocatalytic degradation for the methylene blue (MB) solution have been inverstigated in visible light. The influence of calcining temperature was discussed. The result showed: heat treatment of the material loaded on quartz sand at 400 °C was most effective. The decolorization rate of methylene blue (MB) can be reached 96.92% under 4.5 h xenon lamp irradiation.

• Periodical: Advanced Materials Research (Volumes 183-185)
• Pages: 1803-1806
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.183-185.1803
• Online since: January 2011
• Authors: Song Han, Jin Bing Sun, Wei Xiang, Si Yao Guo, Feng Lu Wang, Li Jiang, Dong Po He
• Keywords: Methylene Blue (MB), Photocatalytic, Quartz Sand, Titania

References

[1] Fujishima A, Honda K: Nature, Vol. 238 (1972) p.37.

[2] Gorges R, Meyer S, Kreise G. J, Photochem Photobiol A: Chemistry, 2004, 167: 95 -99.

[3] Harizanov O, Ivanova T， Harizanova A. Materials Lettors, 200l, (49): 165-171.

[4] Piscopo A, Robertd, Weber J.V. Joumal of Photochemistry and Photobiology A: Chemistry, 2001, 139(2): 253-56.

[5] Znaidi L, Seraphimova R, Bocquet J.F., Mater Res. Bull, 2001, 36(6): 811-825.

[6] Zhang H. Z, Finnegan M., Banfield J.F. Nano Lett, 2001, 1(2): 81-85.