Effect of calcinations temperature on microstructures, photocatalytic activity and self-cleaning property of TiO2 and SnO2/TiO2 thin films prepared by sol-gel dip coating process

Weerachai Sangchay

doi:10.1117/12.2048980

2 June 2014 Effect of calcinations temperature on microstructures, photocatalytic activity and self-cleaning property of TiO₂ and SnO₂/TiO₂ thin films prepared by sol-gel dip coating process

Weerachai Sangchay

Author Affiliations +

Proceedings Volume 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics; 923404 (2014) https://doi.org/10.1117/12.2048980
Event: International Conference on Experimental Mechanics 2013 and the Twelfth Asian Conference on Experimental Mechanics, 2013, Bangkok, Thailand

Abstract

The purpose of this research was to study the effect of calcinations temperature on phase transformation, crystallite size, morphology, photocatalytic activity and self-cleaning properties of TiO₂ and SnO₂/TiO₂ thin films. The thin films were preparation by sol-gel dip coating process and calcinations at the temperature of 500 °C, 600 °C and 700 °C for 2 h with the heating rate of 10 °C/mim. The microstructures of the fabricated thin films were characterized by XRD and SEM techniques. The photocatalytic activity of the thin films was also tested via the degradation of methylene blue solution under UV irradiation. Finally, self-cleaning properties of thin films were evaluated by measuring the contact angle of water droplet on the thin films with and without UV irradiation. It was found that SnO₂/TiO₂ thin films calcinations at the temperature of 500 °C shows the highest of photocatalytic activity and self-cleaning properties.

Citation Download Citation

Weerachai Sangchay "Effect of calcinations temperature on microstructures, photocatalytic activity and self-cleaning property of TiO₂ and SnO₂/TiO₂ thin films prepared by sol-gel dip coating process", Proc. SPIE 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics, 923404 (2 June 2014); https://doi.org/10.1117/12.2048980

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