A STUDY OF TIO2 NANO FILM AS GREEN PHOTOCATALYST FOR DEGRADATION OF DYES

Sol–gel method was used to prepare TiO2 Powder. About 7 μm thin film of TiO2 coating was fabricated successfully on glass, by the sol–gel dip process. It is suggested that the films may have the structure of amorphous network. These results were characterized based on the SEM , UV–visible spectroscopy and X-ray diffraction data. This film absorbed the dyes and degraded them in the presence of sunlight. This film absorbed the dyes and degraded them in the presence of sunlight. The photo catalytic study showed that this film is very effective for methylene blue degradation (~100%) within one hour sunlight irradiation. Film was used for more than 50 cycles. The reactivity of the particles was found to be related to the surface electronic properties, as it decomposes the methylene blue in presence of light