Abstract
C, N codoped TiO 2 catalyst has been synthesized by thermal decomposition of a novel water-soluble titanium complex. The structure, morphology, and optical properties of the synthesized TiO 2 catalyst were characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and UV - vis diffuse reflectance spectroscopy. The photocatalytic activity of the Pt deposited TiO 2 catalysts synthesized at different temperatures was evaluated by means of hydrogen evolution reaction under both UV - vis and visible light irradiation. The investigation results reveal that the photocatalytic H 2 evolution rate strongly depended on the crystalline grain size as well as specific surface area of the synthesized catalyst. Our studies successfully demonstrate a simple method for the synthesis of visible-light responsive Pt deposited TiO 2 catalyst for solar hydrogen production.