To　explore　the　relationship　between　semiconductor　structure　and　plasmonic　noble　metal　nanoparticles　(NPs)　property　is　crucial　for　developing　highly　efficient　visible　light　driven　photocatalyst.　Here,　dendritic　alpha-Bi2O3/Bi2O2CO3　biphasic　heterostructures　were　first　synthesized　by　a　facile　and　low-cost　phase　transformation　method.　Then,　plasmonic　Au　NPs　(including　Au　nanospheres　(NSs,　similar　to　30　nm))　and　Au　nanorods　(NRs,　similar　to　20,　similar　to　30,　and　similar　to　35　nm)　were　loaded　onto　the　alpha-Bi2O3/Bi2O2CO3　heterostructure.　The　results　revealed　that　these　alpha-Bi2O3/Bi2O2CO3　heterostructures　exhibited　much　higher　visible-light　photocatalytic　activities　than　alpha-Bi2O3　for　dye　degradation.　More　importantly,　compared　to　plain　alpha-Bi2O3/Bi2O2CO3　heterostructures,　loading　of　Au　NSs　brought　similar　to　4　times　increase　in　activity　and　Au　NRs　5-11　times　depending　on　nanorods　size.　The　significant　boosting　of　activity　is　attributed　to　the　large　enhancement　of　charge　separation　by　the　formation　of　alpha-Bi2O3/Bi2O2CO3　interface　and　more　production　of　(OH)-O-center　dot　radicals　by　Au　NSs　or　Au　NRs.　The　surface　plasmon　resonance　(SPR)　absorption　of　these　gold　NPs　on　the　alpha-Bi2O3/Bi2O2CO3　heterostructures　could　also　have　significant　contribution　to　the　activities　due　to　their　strong　plasmonic　near-fields.　This　work　demonstrates　that　tailoring　the　semiconductor　substrate　structure　and　the　plasmonic　noble　metal　NPs　properties　should　constitute　a　promising　strategy　for　the　design　efficient　solar　energy　driven　photocatalytic　materials.　(C)　2015　Elsevier　B.V.　All　rights　reserved.