Photocatalytic and Self-Cleaning Properties of TiO₂-Cu Thin Films on Glass Substrate

Abstract:

TiO₂-Cu thin films containing 0 to 1%Cu coated on glass slides were prepared by sol gel-dip coating method. The prepared thin films were synthesized at the temperature of 400 ^◦C for 2 h with a heating rate of 10^◦C/min. The microstructures of synthesized TiO₂-Cu thin films were characterized by XRD, FT-IR and SEM. The photocatalytic activities of TiO-₂Cu thin films were tested using methylene blue (MB) solution under UV irradiation. Finally, the self-cleaning property was evaluated by means of contact angle of water droplet on the films. The results show all samples have the thickness in range of 1 um and surfaces are dense with a large surface area. It can be noted that TiO₂-1.0Cu thin films were found to give the highest photocatalytic efficiency and exhibited self-cleaning effect (small contact angle, 17°) under UV irradiation.

• Periodical: Applied Mechanics and Materials (Volumes 152-154)
• Pages: 409-413
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.152-154.409
• Online since: January 2012
• Authors: Weerachai Sangchay, Lek Sikong, Kalayanee Kooptarnond
• Keywords: Contact Angle (CA), Photocatalytic, Self-Cleaning, Thin Film, TiO₂-Cu

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