Nitride and Oxynitride Semiconductors

Ru02-loaded 3-Ge3N4 as a photocatalyst for water decomposition into H2 and O2 is the first successful example of a 

Loaded with 10-20 nm nanoparticles of rhodium-chromium mixed oxide (Rh2-yCry03) as a cocatalyst on the surface of [(Gai xZnx)(Ni-xOx)], the quantum efficiency of overall water splitting is about 2.5% at 420-440 nm [55,180-182]. Use of AgN03 as a sacrificial electron acceptor leads to an increase in oxygen evolution. The mixed oxide exhibited high and stable photocatalytic activity in aqueous H2SO4 solution at pH 4.5 [182] both lower and higher pH 

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