Nanosized TiO 2 films on stainless steel were prepared by electrophoretic deposition and characterized by X-ray diffraction analysis and photo-voltammetry. The decoloration of methylene blue (MB) dye was used as a test reaction for the evaluation of photoelectrocatalytic activity of the prepared TiO 2 coatings. The influence of applied potential and potassium peroxodisulfate on the rate of MB decoloration was investigated. The possible mechanisms of MB oxidation under various experimental conditions are discussed.
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