Selectivity reversal of photocatalytic CO2 reduction by Pt loading†

In photocatalysis systems, precious metal co-catalysts play very important roles. Here, a photodeposition method is used to load Pt on different photocatalysts for photocatalytic CO₂ conversion testing. The performance results indicate that the selectivity of semiconductor photocatalysts for CO₂ reduction was effectively reversed from CO to CH₄ due to the introduction of Pt.