Synthesis of CeO2/Ag/Ho nanostructures in order to improve photo catalytic activity of CeO2 under visible light

Abstract

In one sun (Air mass 1.5), the amount of light that reaches earth’s surface is around 45% of visible and 3–5% of the UV. Therefore it is important to prepare visible driven photo-catalyst. CeO2 is highly potential photo-catalyst that its wide band gap limits its application in visible light. Here, its photo-catalytic activity was improved from 10 to 20% for methyl orange and Rhodamin B to 72 and 83%, respectively under visible light. In addition effect of different parameters such as surfactant and precipitating agent on the morphology of products were investigated.