Organic　pollutants　of　the　modern　era　have　been　the　subject　of　extensive　observation　in　ecosystems　due　to　the　fact　that　they　are　not　completely　eliminated　and　are　still　hazardous.　An　innovative　method　of　using　clean,　abundant　solar　energy　to　remove　industrial　environmental　pollutants,　such　as　pharmaceutical　and　dye　contaminants,　is　to　design　a　high　-efficiency　sun　-activated　photocatalyst.　In　this　work　we　fabricated　rGO-ED-MnO　2　-WCuCo-30　heterojunction　photocatalyst　for　the　visible　-light　degradation　of　sulfanilamide　(SFA)　and　methyl　orange　(MO)　pollutants　using　a　simple　sonication　approach.　The　photocatalyst＇s　active　surface　area　and　visible　light　absorption　were　enhanced　both　by　doping　the　surface　of　MnO　2　with　a　higher　density　single　metal　atom　oxide　(SMAO)　and　reduced　graphene　oxide　(rGO).　A　number　of　characterizations　showed　that　the　rGO-ED-MnO　2　-WCuCo-30　catalyst＇s　increased　SMAO　particle　anchoring　(STEM-HAADF)　and　increased　visible　light　absorption　(DRS-UV　-Vis)　contributed　to　its　high　catalytic　activity　toward　the　SFA　and　MO　decomposition.　Under　visible　-light　irradiation,　the　photocatalytic　performances　were　evaluated　for　the　decomposition　of　SFA　and　MO　pollutants.　The　impact　of　various　experiment　parameters　on　the　composites＇　photoactivity　were　examined.　In　the　presence　of　visible　light,　the　highest　achievable　photodegradation　removal　of　SFA/MO　was　determined　to　be　27.65/50.72　%,　38.73/　57.44　%,　48.71/72.54　%,　52.77/74.31　%,　55.71/77.61　%,　71.36/82.35　%　and　97.38/98.76　%　within　90/30　min　when　utilizing　HPA　-　Cu,　HPA　-　Co,　MnO　2　,　rGO-ED-MnO　2　-WCo-30,　rGO-ED-MnO　2　-WCu-30,　rGO-ED-MnO　2　-　WCuCo-20,　rGO-ED-MnO　2　-WCuCo-30　catalysts　respectively.　Furthermore,　O　2　center　dot-　radicals　had　a　significant　influence　in　the　lowest　degradation　efficiency　(25.83/30.56　%)　shown　by　SFA/MO.　No　detectable　change　in　activity　was　seen　after　six　photodegradation　cycles　using　rGO-ED-MnO　2　-WCuCo-30　(30　mg)　in　an　SFA/MO　solution.