ZnIn2S4/WO3　nanocomposites,　with　ZnIn2S4　nanosheets　loaded　on　WO3　nanorods,　were　synthesized　by　self-assembly　of　hexagonal　ZnIn2S4　in　the　presence　of　preformed　WO3·H2O　nanoplates.　PtS　and　MnO2,　the　co-catalysts　for　H2　and　O2　evolution,　respectively,　were　selectively　loaded　on　ZnIn2S4　and　WO3　in　the　nanocomposites.　The　resultant　PtS-ZnIn2S4/WO3-MnO2　nanocomposites　show　photocatalytic　activity　for　overall　water　splitting　to　produce　H2　and　O2　under　visible　light.　An　optimum　activity　was　achieved　over　0.5%PtS-20%ZnIn2S4/WO3-3.0%MnO2,　in　which　5.94　μmol　of　H2　and　2.24　μmol　O2　were　evolved　in　8　h.　The　apparent　quantum　yield　(AQY)　for　H2　evolution　was　determined　to　be　ca.　0.50%　at　420　nm.　The　superior　photocatalytic　activity　for　overall　water　splitting　over　PtS-ZnIn2S4/WO3-MnO2　nanocomposites　can　be　ascribed　to　an　efficient　coupling　of　photocatalytic　water　reduction　over　PtS-ZnIn2S4　and　photocatalytic　water　oxidation　over　MnO2-WO3　via　a　Z-scheme　charge　transfer　pathway.　This　study　demonstrates　a　high　potential　of　fabrication　of　the　all-solid　Z-scheme　photocatalytic　systems　for　overall　water　splitting.　©　2019　Elsevier　B.V.