Photothermal　synergistic　catalytic　oxidation　of　toluene　over　single-atom　Pt　catalysts　was　investigated.　Compared　with　the　conventional　thermocatalytic　oxidation　in　the　dark,　toluene　conversion　and　CO2　yield　over　0.39Pt(1)/CuO-CeO2　under　simulated　solar　irradiation　(lambda　=　320-2500　nm,　optical　power　density　=　200　mW　cm(-2))　at　180　degrees　C　could　be　increased　about　48%.　An　amount　of　CuO　was　added　to　CeO2　to　disperse　single-atom　Pt　with　a　maximal　Pt　loading　of　0.83　wt　%.　The　synergistic　effect　between　photo-　and　thermocatalysis　is　very　important　for　the　development　of　new　pollutant　treatment　technology　with　high　efficiency　and　low　energy　consumption.　Both　light　and　heat　played　an　important　role　in　the　present　photothermal　synergistic　catalytic　oxidation.　0.39Pt(1)/CuO-CeO2　showed　good　redox　performance　and　excellent　optical　properties　and　utilized　the　full-spectrum　solar　energy.　Light　illumination　induced　the　generation　of　reactive　oxygen　species　((OH)-O-center　dot　and　O-center　dot(2)-),　which　accelerated　the　transformation　of　intermediates,　promoted　the　release　of　active　sites　on　the　catalyst　surface,　and　improved　the　oxidation　reaction.