Characterization of Multinanoporous Pt-TiO 2 Thin Films Fabricated by a Three-Step Electrochemical Technique

In the present investigation, a three-step electrochemical as a novel method has been applied to fabricate multinanoporous thin film electrodes of pure TiO2 and the doped Pt-TiO2 (of approximately 15 nm) from the titanium sheet using sulfuric acid as electrolyte and chloroplatinic acid as platinum dopant precursor. Characterization techniques so far discussed in this work revealed that the fabricated products corresponded to pure TiO2 and to the doped Pt-TiO2 respectively. The prepared Pt-TiO2 thin film electrodes have photoresponse to visible light, which indicates a new possibility for improving intrinsic TiO2 photoresponse.