Rational　designs　of　photocatalysts　with　high　activity　and　stability　in　redox　reactions　have　been　an　imperative　requirement　for　practical　applications.　Herein,　a　hetero-structured　photocatalyst,　namely　Mn0.25Cd0.75S/WO3,　has　been　synthesized　via　an　in-situ　growth.　This　hybrid　material　presents　a　significantly　improvement　for　hydrogen　evolution　and　stability　with　respect　to　the　Mn0.25Cd0.75S　sample.　These　improvements　can　be　attributed　to　the　formation　of　a　direct　Z-scheme,　and　this　formation　has　been　confirmed　by　the　photoluminescence　(PL)　detection　of　hydroxyl　radicals　trapping　and　charge　flow　tracking　by　photo-deposition　of　Pt　and　PbO2　nanoparticles.　A　few　measurements　reveal　that　the　charge　transfer　mechanism　of　the　Z-scheme　leads　efficiently　spatial　separation　of　photoinduced　electron-hole　pairs,　and　thus　to　prolong　the　photogenerated　electron　lifetime.　Moreover,　the　as-obtained　Mn0.25Cd0.75S/WO3　is　also　attempted　for　a　practical　reaction,　which　conducts　photoinduced　conversion　from　benzyl　alcohol　to　H-2　and　benzaldehyde.　The　conversion　has　been　attained　25.91%　using　this　hybrid　photocatalysis.