Developing　efficient　photocatalysts　for　CO2　reduction　into　value-added　chemical　feedstocks　is　of　significance.　Heterojunction　photocatalysts　are　promising　candidates　but　still　suffering　from　the　insufficient　electron-hole　pair　separation　issues.　Herein,　a　strategy　that　dual　metal?organic　frameworks　(MOFs)　template-directed　fabrication　of　carbon-supported　heterojunction,　C-In2O3@MO　(MO　=　ZnO,　Co3O4,　and　ZnCo2O4)　with　tunable　band　matching　structure　was　developed.　The　resultant　hollow-structured　C-In2O3@ZnCo2O4　shows　high　CO2　reduction　activity　towards　CO　(44.1　?mol　g1　h-1)　with　a　selectivity　of　66%.　The　superior　performance　of　this　material　could　be　ascribed　to　the　suitable　energy　band　matching　and　efficient　internal　charge　transfer　on　p-n　heterojunction,　which　facilitates　electron-hole　separation.　Meanwhile,　the　hollow　cavity　not　only　improved　light-harvesting　capability　through　multiple　light　reflection　and　scattering　in　the　internal　voids　but　also　provided　large　surface　area　for　exposing　active　sites　to　promoting　the　activation　of　CO2.　This　study　thus　proposes　a　feasible　approach　to　adjust　the　heterojunction　structure　of　photocatalysts　to　achieve　efficient　CO2　reduction　reaction.　Superscript/Subscript　Available＜/comment