A study of TiO2 photo-catalyst modified by air electrode

A novel composite electrode which has both of the functions of synthesizing H2O2 and photocatalysis is reported. This double function composite electrode was prepared by loading the photocatalyst TiO2/C on a novel substrate which can synthesize HA. The porous properties of TiO2/C photocatalysis layer can make the novel carrier synthsizing H2O2 efficiently. The current efficiency attained a value of 82 % (J= 15 mA cm(2)), and the novel carrier made TiO2 gaining an anodic bias which is very important for improving the photocatalytic activity of TiO2. In this novel system, photochemistry and photocatalysis oxidization were combined near the interface of electrode/solution and thus the degradation rate of organic molecules enhanced rapidly.