Ti1−XSbXO2 samples were obtained from dip-coating sol-gel method and a subsequent anneal at 450℃. They had an average crystallite size of 13.3-20nm. Cyclic voltammograms taken under ultraviolet (UV) and Xe lamp illumination in a 0.5M Na2SO4 electrolyte showed that the Sb-doped samples had greater photocurrent densities than pure titania electrode, with an optimal Sb concentration of 0.2%. Oxidative peaks were observed in the cyclic voltammograms obtained in the dark after certain exposure duration to UV light. X-ray diffraction patterns and Raman spectra show a phase transformation from brookite to anatase in the samples with Sb concentration up to 0.2%. Ti4+ ions were substituted by Sb to form the anatase structure of Sb-O-Ti, improving the crystallization efficiency. The Sb-Sb bonds were formed due to the introduction of excessive Sb atoms.