| Self Cleaning on Photocatalyst Basis of Nano-Crystalline TiO2 Thin Film Prepared by Spray Pyrolysis |
| G. Kavei*, K. Ahmadi and A. Kavei1 |
| Abstract |
Thin films constituted by nano-size TiO2 particles were prepared by spray pyrolysis aerosol. The aerosol was generated ultrasonically, of titanium butoxide deposited on the substrate at 250o and 375oC temperature. As-deposited films were annealed at 600o, 700o, 800o, 900o and 1000oC, in atmospheric conditions. Raman and glancing angle X-ray diffraction spectroscopy were set to analysis photocatalytic properties of the films. Transmission and morphology of the films were characterized by transmission and scanning electron microscopy, respectively. With increasing substrate and annealing temperature transformation occurred from anatase to rutile phase. Theoretical analysis of the experimental details was considered by focussing on symmetry modes of the phases that were changed when the phase transformation took place.
Page No. 31 - 38
DOI:10.1080/0371750X.2012.689509 |
| Full text : Subscribe to Download Full Text |
| [Go Back] |
|
