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Photocatalytic activity of mixture of SnS2 and TiO2 powders in destruction of metyhyl orange in water

H. Y. HE1,* , J. F. HUANG1, L. Y. CAO1, J. P. WU1, Z. HE1, L. LUO1

Affiliation

  1. College of Material Science and Engineering, Shaanxi University of Science and Technology, China (710021)

Abstract

Nano-SnS2 and TiO2 powders were synthesized with chemical solution method and sol-gel method respectively. XRD and AFM and spectrophotometry were used for characterization of the powders. Experiment results indicated that the mixture of SnS2 and TiO2 powders consist of uniform anatase TiO2 crystals of 9.9 nm with hexagonal SnS2 nanocrystals of 9.6nm. The degradation rates of methyl orange on the mixed powders were increased with increasing SnS2 content. The degradation rates of a methyl orange solution under sunlight for 3h were increased from 22% to 90% with increasing SnS2 content from 0mol% to 30mol%. Substitution groups on benzene and benzene can be further photodecomposed in a condition of micro-alkaline solution..

Keywords

SnS2, TiO2, Sol-gel preparation, nanomaterials, Photocatalyst, Atomic force microscopy.

Submitted at: Aug. 21, 2007
Accepted at: Dec. 7, 2007

Citation

H. Y. HE, J. F. HUANG, L. Y. CAO, J. P. WU, Z. HE, L. LUO, Photocatalytic activity of mixture of SnS2 and TiO2 powders in destruction of metyhyl orange in water, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 12, pp. 3781-3784 (2007)