The　ternary　CdS-graphene-TiO　2　hybrids　(CdS-GR-TiO　2)　have　been　prepared　through　an　in　situ　strategy　on　the　flatland　of　graphene　oxide　(GO).　The　structure　and　properties　have　been　characterized　by　a　series　of　techniques,　including　X-ray　diffraction　(XRD),　field-emission　scanning　electron　microscopy　(FE-SEM),　transmission　scanning　electron　microscopy　(TEM),　energy-dispersive　X-ray　spectroscopy　(EDX),　UV-vis　diffuse　reflectance　spectra　(DRS),　electrochemical　analysis,　photoluminescence　spectra　(PL),　nitrogen　adsorption-desorption,　and　electron　spin　resonance　spectra　(ESR).　Combined　with　our　previous　results,　it　is　found　that　the　introduction　of　the　third-component　TiO　2　can　maintain　the　morphology　and　porosity　of　the　samples,　whereas　it　is　able　to　tune　the　energy　band,　increase　the　surface　area,　and　facilitate　the　electron　transfer,　thus　prolonging　the　lifetime　of　photogenerated　carriers.　Taking　photocatalytic　selective　oxidation　of　various　alcohols　to　their　corresponding　aldehydes　as　model　reactions,　the　ternary　CdS-GR-TiO　2　hybrid　exhibits　enhanced　photocatalytic　activity　compared　with　its　foundation　matrix　binary　CdS-GR.　The　improved　photocatalytic　performance　can　be　attributed　to　the　combined　interaction　of　the　longer　lifetime　of　photogenerated　electron-hole　pairs,　faster　interfacial　charge　transfer　rate,　and　larger　surface　area.　In　addition,　a　possible　reaction　mechanism　has　been　proposed.　This　work　indicates　that　the　careful　design　of　graphene-based　composites　by　coupling　graphene　to　suitable,　multiple　semiconductors　allows　the　achievement　of　more　efficient　photocatalysts,　which　may　have　the　great　potential　to　improve　the　capacity　for　photocatalytic　processes　significantly.　As　a　proof-of-concept,　it　is　expected　that　this　work　could　offer　new　inroads　into　exploration　and　utilization　of　graphene-based　nanocomposites　as　a　fertile　ground　for　energy　conversion.　©　2012　American　Chemical　Society.