Controllable　synthesis　of　one-dimensional　(1D)/three-dimensional　(3D)　nanocomposites　with　promising　photocatalytic　performances　has　been　attracting　ever-increasing　research　attention　in　recent　years.　Here,　we　report　the　self-assembly　of　TiO2　nanobelts/CdS　nanospheres　(TNBs/CdS　NSPs)　photocatalyst　via　the　electrostatic　interaction　of　positively　charged　CdS　nanospheres　(CdS　NSPs)　with　negatively　charged　TiO2　nanobelts　in　aqueous　phase.　The　as-formed　TNBs/CdS　NSPs　nanocomposite　exhibited　significantly　enhanced　visible-light-driven　photocatalytic　activities　in　comparison　with　the　single　counterpart　(TNBs　and　CdS　NSPs)　owing　to　the　formation　of　well-defined　heterojunction　between　TNBs　and　CdS　NSPs,　thus　leading　to　much　enhanced　light　absorption　and　prolonged　lifetime　of　photogenerated　charge　carriers.　It　is　anticipated　that　our　work　could　provide　an　efficient　synthetic　approach　to　design　a　large　variety　of　1D/3D　photocatalysts　for　diverse　photocatalytic　applications.　©　2015　Elsevier　B.V.