Collect. Czech. Chem. Commun. 1983, 48, 3033-3040

Hydrogen peroxide photolysis. Mechanism of photocatalytic effect of transition metals

Stanislav Luňák and Josef Vepřek-Šiška

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 160 00 Prague 6


The photochemical decomposition of hydrogen peroxide depends on the presence of transition metal ions in the reaction system. Photochemical reduction of the poorly catalytically active ions with higher oxidation states produces catalytically active ions of lower oxidation states which catalyze the thermal reaction. The quantum yield of hydrogen peroxide photolysis is proportional to the number of catalytic cycles occurring on the photochemically generated catalyst.