A　novel　Bi/CdS　nanocomposite　is　obtained　via　an　in-situ　chemical　reduction　method　under　mild　conditions.　The　incorporation　of　Bi　nanostructure　can　significantly　enhance　the　photocatalytic　performance　for　methyl　orange　(MO)　and　salicylic　acid　(SA)　degradation　compared　with　pristine　CdS　under　visible　light　irradiation.　The　dramatically　improved　photoactivity　can　be　attributed　to　the　enhanced　light　absorption　and　optimized　charge　separation.　In　addition,　the　photocatalysis　mechanism　upon　Bi/CdS　for　MO　degradation　is　also　investigated.　This　study　is　hoped　to　provide　a　new　inspiration　for　the　construction　of　high-efficiency　semimetal/semiconductor　photocatalysts,　especially　for　non-noble　metal/M.Sy　nanocomposites.　(C)　2017　Elsevier　B.V.　All　rights　reserved.