Photocatalysts are valuable material due to their ability to separate electron-hole in present light illumination. Photo catalysts have extended application in many field such as photocatalytic water splitting and photo cathodic protection of 403 stainless steel (403SS) that protect of SS from corrosion in solution. In this thesis, Fe-TiO2 and Cr-TiO2 nanotube are prepared by one step electrochemical anodizing, then prepared sample are decorated by nickle-platinium electroless deposition at various deposition time., their morphology, structure, and optical properties were investigated via using SEM, XRD, UV-Visible and Raman spectroscopy, respectively. To investigate the photoelectrocatlytic properties of nanotubes, linear sweep voltametery and chronoamperometric tests were used. All co deposited samples in both sections producted more current densities than the bare samples. In general, the results of studies showed photocatalytic properties of synthesized nanotubes was improved due to deposition of metals. In Cr-TiO2 part, t20 sample (20 min immersion in electroless bath) and in Fe-TiO2 part, t10 sample (10 min immersion in electroless bath) were chose as optimal samples due to having best performance i electrochemical tests. Also in the first section, aliphatic alchols as sacrificial agent was added to electrolyte solution and their effect on generation of current density was evaluated by the optimal photoanode. In addition, the photoanode generated most current density in present of 5 vol. % methanol solution. In second section, 403SS is protected by Ni-Pt co deposited photoanodes in present light and in the corrosion solution.