Promotion effect of Au on N/TiO2 for hydrogen generation from water splitting

A series of N/TiO2 were prepared by sol gel method, which was acted as photocatalysts. These photocatalysts were characterized by Transmission Electronic Microscopy (TEM), Reflective UV-Visible spectra and X-ray diffraction (XRD). The photocatalysts were applied for hydrogen gas generation from the water splitting reaction under visible light. Various N/Ti addition ratios could change the hydrogen generation rate. For the addition ratios N/Ti = 10 of N/TiO2, we obtained the maximum hydrogen production rate is about 38 μmol h(-1) g(-1). By loading the Au into the N/TiO2, the hydrogen generation rate was increased. We could get the best hydrogen production rate of 0.05 wt% Au/N/TiO2 is about 517 μmol h(-1) g(-1).