Overall Water Splitting into H2 and O2 under UV Irradiation on NiO-loaded ZnNb2O6 Photocatalysts Consisting of d10 and d0 Ions

NiO-loaded ZnNb2O6 photocatalysts showed an activity for decomposition of pure water into H2 and O2 under band gap irradiation (hv > 4.0 eV). This oxide photocatalyst is a new type of a photocatalyst material from the view point of the component because it consists of d10 and d0 metal ions.