In this work the preparation of TiO2 was synthesized by sol-gel spin coating method by using TTIP as precursor solution with DEA and ethanol. The prepared samples were annealed at various temperatures. Crystallinity, phase formations and structures of the annealed samples were examined by XRD, SEM and UV-Vis spectra studies. Surface morphological studies obtained from SEM micrograph showed that the particles with spherical shapes are anatase in nature. Estimated optical band gap showed shifts with increasing annealing temperatures. The prepared thin film were used for photo catalytic degradation of methyl blue dye to identify the best photo catalyst to degrade textile dye effluent under ultraviolet light irradiation. Among the prepared samples TiO2 thin film annealed at 450°c produce the maximum decoloration during the testing time.
