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Photocatalytic overall water splitting is considered as an ideal solution to the energy crisis by converting inexhaustible solar energy into hydrogen energy. However, the practical application of p...

To fabricate the H 2 –O 2 promoting effect systems for quicker degradation of organic pollutants without an external H 2 supply, we replace pure Pt/TiO 2 photocatalyst by a cooperative catalyst composed of Pt/TiO 2 and some assistant catalysts with water-splitting ability. When the cooperative catalysts were used for the photooxidation of organic pollutants under UV light irradiation, enhanced activities were observed for salicylic acid and phenol removal, except for formate, as compared to pure Pt/TiO 2 catalyst. For different metal oxides as the assistant catalyst, an increase in the activity depended on their ability to promote H 2 release. The fluorescence spectroscopy and photometric techniques combind with GC–MS were applied to investigate the cooperative system. Results revealed that more hydroxyl radical ( OH) and hydrogen peroxide (H 2 O 2 ) were formed from the H 2 O molecules over a cooperative catalyst. A photodegradation mechanism of organic pollutants on a cooperative catalyst is proposed.