Abstract

SYNTHESIS AND CHARACTERIZATIONS OF TITANIUM DIOXIDE NANOPARTICLES

Dinesh N. Suryawanshi*

Abstract

Nanostructured TiO2 thin film has been prepared by simple spray pyrolysis technique. was employed to prepare. To prepare nanocrystalline TiO2 thin film by using solution of AR grade Titanium chloride (TiCl3, 0.05 M). The solution was sprayed on quartz substrate heated at 3500C temperature to obtain the film. This thin film was annealed for a one hours at 6000C. As prepared thin film was characterized by X-ray diffraction, Microstructure properties study was conducted using Transmission Electron Microscopy. The sensing performance of this thin film was tested for various gases such as LPG, H2, CO2, Ethanol, NH3 and Cl2 (500 ppm). Gas response, selectivity, response and recovery time of the sensor were measured and presented.

Keywords: Spray pyrolysis techniques, TiO2 thin film, gas sensor, sensitivity, bandgap.