In　this　manuscript,　rod-like　Bi4O7　decorated　Bi2O2CO3　plates　were　fabricated　for　the　first　time.　Compared　with　pristine　Bi2O2CO3,　the　tight　decoration　of　Bi4O7　over　Bi2O2CO3　plates　not　only　strengthened　the　visible　light　absorption,　but　also　enhanced　the　separation　efficiency　of　photo-generated　carriers.　As　expected,　the　heterostructured　Bi4O7/Bi2O2CO3　composites　have　exhibited　highly　promoted　photocatalytic　activities　in　decomposing　Rhodamine　B　(RhB)　under　visible　light.　The　BOBC-2　sample　displayed　the　best　activity　with　a　reaction　rate　constant　of　0.0245　min−1,　which　was　3.8　times　higher　than　that　of　pure　Bi4O7.　Besides　RhB,　the　Bi4O7/Bi2O2CO3　composites　also　displayed　superior　activity　toward　colorless　contaminants　with　stable　chemical　structures,　such　as　phenol,　p-tert-butylphenol,　and　o-phenylphenol.　The　activity　enhancement　should　be　ascribed　to　the　proper　energy　levels　of　the　materials　and　formation　of　heterojunction　at　their　interfaces,　which　could　facilitate　the　charge　transfer　and　promote　the　separation　efficiency.　Following　transient　photocurrent　response,　electrochemical　impedance　spectroscopy,　and　photoluminescence　emission　tests　all　verified　this.　In　addition,　controlled　experiments　using　various　radical　scavengers　proved　that　[rad]O2−　and　h+　played　the　chief　role　in　decomposing　organic　pollutants.　This　work　may　provide　a　new　method　for　constructing　Bi-based　heterostructured　photocatalysts　with　high　activity.　©　2017　Elsevier　Inc.