WATER PHOTOLYSIS REACTION ON CERIUM OXIDE PHOTOCATALYSTS

The photocatalytic reaction of water was studied on a cerium oxide pho tocatalysts system. Cerium oxide photocatalyst showed a high evolution rate of hydrogen with cesium loading. In comparison to the adsorption properties, the adsorption strength of oxygen was superior to that of hydrogen. The variation of product distribution during the water phot olysis reaction was mainly influenced by the adsorption properties of hydrogen and oxygen. Metal carbonate additives to the water photolysis reaction accelerated hydrogen evolution by photodecomposition of them selves.