AgFe dual cocatalyst for selective conversion of CO2 using K2YTa5O15 photocatalyst

Abstract

The photocatalytic conversion of CO2 is a promising technique for realising a carbon neutral society based on the use of renewable energy sources. The application of dual cocatalysts consisting of AgCo and AgFe significantly improves the photocatalytic activity of an Al−SrTiO3 photocatalyst for the conversion of CO2 to CO in water. In this work, the photocatalytic conversion of CO2 using Ga2O3 and K2YTa5O15 photocatalysts was successfully performed in the presence of a AgFe dual cocatalyst loaded by a photodeposition method. The addition of Fe species to Ag/K2YTa5O15 was found to simultaneously increase the CO formation rate and the selectivity towards CO.