The effect of TiO₂thin film thickness on self-cleaning glass properties

Abstract

Abstract. TiO 2 is one of semiconductor materials which are widely used as photocatalyst in the form of a thin film. The TiO 2 thin film is prepared by using the spin coating sol-gel method. The researcher prepared TiO 2 thin film with 3 coating variations and X-Ray Diffraction characterization, UV-Vis Spectrophotometer, Electron Microscopy Scanning, and examined its hydrophilic and anti-fogging properties. The result of X-Ray Diffraction showed that the phase formed is the anatase on 101crystal field. The Electron Microscopy Scanning images showed that TiO 2 thin films had a homogeneous surface with the particle sizes as big as 235 nm, 179 nm, and 137 nm. The thickness of each thin film was 2.06 m  , 3.33 m  , and 5.20 m  . The characterization of UV-Vis Spectrophotometer showed that the greatest absorption to the wavelength of visible light was in the thin film's thickness of 3 coatings with the band-gap determined by using 3.30 eV, 3.33 eV, and 3.33 eV Plot Tuoc. These results indicated that the rate of absorption would be increased by increasing the thickness of film. The increasing thickness of the thin film makes the film hydrophilic able to be used as an anti-fogging substance.

Improved Self-cleaning Properties of an Efficient and Easy to Scale up TiO2 Thin Films Prepared by Adsorptive Self-Assembly

“…The value of the contact angle is found to be around 41°. This slight reduction in the contact angle (which was measured to be 43° before light exposure) is rather expected 25,26 . The effect of the sunlight has been reported earlier and was found to decrease the contact angle over time 25,26 .…”

CNTs modified ZnO and TiO2 thin films: The effect of loading rate on band offset at metal / semiconductor interfaces

“…Due to its remarkable functional properties, the range of applications for TiO2 is very wide. For example, for the application of self-cleaning glasses [22], filtration of wastewater into drinkable water [23][24], Dye Sensitized Solar Cells (DSSC), integrating pure or modified anatase TiO2 and based on the photo-catalytic principle, have been developed [25].…”

Photodegradation of Methylene Blue and Evans Blue by Iron and Sulphur Doped TiO2 Nanophotocatalyst under Ultraviolet and Visible Light Irradiation

“…In recent decades, the transition-metal oxide semiconductor, especially TiO2 Nps has been extensively subjected due to outstanding and versatile applications in photodegradation of dyes, solar cells, photo-chemical sensors, anti-fog glasses, self-cleaning covers, fuel cells, etc [1][2][3][4][5][6]. In addition, due to excellent properties such as low cost, none-toxicity, large bandgap about 3.2 eV, high oxidizing ability, high resistance against corrosion, it plays an important role in photovoltaic, electrochromic devices and degradation of complex-organic pollutants and infrangible Azo-dyes.…”