Anovelvisiblelightactivephoto-catalystnamedCHC/C-PVA/TiO2,thecompositeoftitaniumdioxide（TiO2）withconjugatedderivativeofpolyvinylalcohol（C-PVA）loadedonacordieritehoneycombceramic（CHC）substrate,wasfabricatedbycombiningthesynthesisofTiO2sol,preparationofC-PVAviathermallytreatingpolyvinylalcohol,andimmobilizationofTiO2solandC-PVAonCHC.BydetectingthechangeofUV–visabsorptionspectraofthemodelorganicpollutant（methylorange（MO））inthepresenceofthecompositeundervisiblelightirradiation,thephoto-catalyticactivitywasevaluatedandtheresultsshowthattheCHC/C-PVA/TiO2compositehasanenhancedphoto-catalyticactivitywhencomparedtotheCHC/TiO2composite.Besides,theCHC/C-PVA/TiO2showsagoodphoto-catalyticstabilityafterthefourthcycles.Thestructureanalysesbyscanningelectronmicroscope（SEM）andenergydispersiveX-rayspectroscopy（EDS）showthecoexistenceofC-PVAandTiO2ontheCHCandthecracksonthesurfaceofCHC/C-PVA/TiO2.Resultofultraviolet-visiblediffusereflectionspectroscopy（UV–visDRS）revealsthattheCHC/C-PVA/TiO2canabsorbbothultravioletandvisiblelightwhileresultofX-rayphotoelectronspectroscopy（XPS）indicatestheexistenceofC,OandTielementsintheCHC/C-PVA/TiO2.ThetypicalstructuresaswellastheopticalcharacteristicsoftheCHC/C-PVA/TiO2areresponsiblefortheenhancementinthephoto-catalyticactivity.
