Cu2O　is　one　of　the　most　promising　photocatalysts　for　visible　light　driven　CO2　conversion,　but　its　practical　application　in　artificial　photosynthesis　is　challenged　to　severe　photocorrosion.　Herein,　a　Cu2O/LaTiO2N　composite　is　successfully　synthesized　by　loading　Cu2O　on　LaTiO2N　through　an　ascorbic　acid　reduction　method,　which　significantly　improves　the　stability　and　activity　of　Cu2O　for　visible　light　driven　photocat-alytic　CO2　conversion,　and　shows　higher　photocatalytic　performance　than　most　Cu2O-based　photocata-lysts　reported.　The　superior　photocatalytic　performance　is　attributed　to　the　formation　of　type-II　heterojunction　between　Cu2O　and　LaTiO2N,　which　facilitates　the　separation　and　transfer　of　photogener-ated　electrons　and　holes.　This　work　provides　an　effective　strategy　for　the　construction　of　stable　and　effi-cient　Cu2O-based　photocatalysts.　(c)　2022　Elsevier　Inc.　All　rights　reserved.