▎ 摘　　要

A new heterogeneous photocatalytic system including gold nanoparticles supported on TiO2 and reduced graphene oxide was introduced for the oxidation of alcohols and alkylarenes. The composite photocatalytically accelerated aerobic oxidation of alcohols and alkylarenes to the corresponding aldehydes and ketones in solvent-free conditions at room temperature during 12 h with 76-92% yield. A comparison of the results with some previous reports indicated high efficiency of the prepared catalyst which exhibited good recyclability.