Hydroxyl　radical(·OH)has　gained　considerable　attention　as　one　of　the　most　important　reactive　oxygen　species,which　is　widely　used　in　water　purification,disinfection　biomedicine　and　other　fields[1].Espe-cially,the　OH　radical　exhibits　the　highest　oxidation　potential,with　the　exception　of·F　radical,which　plays　a　pivotal　role　in　the　purification　of　water.However,developing　an　effective　and　renewable　approach　to　generating　OH　in　situ　represents　a　significant　research　challenge.The　combination　of　artificial　photosynthesis　of　H2O2　via　a　2e-oxygen　reduction　reaction(ORR)and　the　Fenton　reaction　provides　an　indirect　approach　for　the　production　of·OH[2].Comparatively,by　consuming　only　1　mol　of　h+via　the　1e-water　oxidation　reaction(WOR),theoreti-cally　1　mol　of·OH　can　be　generated.This　provides　the　most　efficient　way　to　directly　generate　OH,since　one　h+can　generate　one　OH.