The Photocatalytic Characteristics of TiO₂ Films: an Expeditious Evaluation

Abstract:

An expeditious evaluation for photocatalyst is set up (or established) in this study. The optical transmittance of the methyl blue solution is measured, and a relationship between the transmittance of solution and its concentration is established. The performance of a photocatalyst can be evaluated via the distinct change of methyl blue solution. The TiO₂ films performed as a photocatalyst were prepared using sol-gel method and then annealed by rapid thermal annealing (RTA). The samples were illuminated with a high-pressure mercury lamp for exciting photocatalytic reaction. The result shows that TiO₂ photocatalyst degraded the methyl blue solution up to 97.8%.

• Periodical: Advanced Materials Research (Volumes 194-196)
• Pages: 2050-2053
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.194-196.2050
• Online since: February 2011
• Authors: Kuo Sheng Kao, Wei Che Shih, Da Long Cheng, Po Hsiang Kuo, Pei Shan Hung, Chih Yuan Chan, Chin Ming Wang, Po Tsung Hsieh
• Keywords: Methyl Blue, Photocatalyst, Sol-Gel (SG), TiO₂

References

[1] S. Chiu, Z. Chen, K. Yang, Y. Hsu, D. Gan, Journal of Materials Processing Technology 192 (2007) 60.

[2] G.H. Takaoka, M. Kawashita, K. Omoto, T. Terada, Nuclear Instruments and Methods in Physics Research B 232 (2005) 200.

[3] K. Tan, H. Zhang, C. Xie, H. Zheng, Y. Gu, W.F. Zhang, Catalysis Communications 11 (2010) 331.

[4] S.K. Zheng, G. Xiang, T.M. Wang, F. Pan, C. Wang, W.C. Hao, Vacuum 72 (2004) 79.

[5] C. Yang, H. Fan, Y. Xi, J. Chen, Z. Li, Applied Surface Science 9 (2008) 2685.

[6] M. R. Mohammadia, M. C. Cordero-Cabrera, D. J. Fray, M. Ghorbani, Sensors and Actuators B 120 (2006) 86.

[7] F. Meng, X. Song, Z. Sun, Vacuum 83 (2009) 1147.