Formation and characterization of TiO2 thin films with applicationto a photocatalytic activity

Thin films of titanium dioxide (TiO2) with the desired crystal phase of anatase or rutile were formed byspray pyrolysis of a TiO2 target under precisely controlled process parameters. The applications of TiO2 thin filmcoated on the glass were testified for self cleaning purpose. Optical observation was done for the self cleaningproperties, and an optimized structure with TiO2 was deposited on SiO2 glass by spray pyrolysis. Optical evaluation ofthe photocatalyst application was performed by measuring the transmittance/reflectance with a spectrophotometer inwavelengths 250–2500 nm and with a FT-IR system in wavelengths 1–25mm, respectively. Furthermore, it issuggested that a better and a multifunctional performance can mostly be expected through precise control of the crystalstructure of the TiO2 top layer which acts as a photocatalyst.

کلیدواژه ها:

Titanium dioxide ، Anatase ، rutile ، Ultrasonic spray pyrolysis ، Optical transmission