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1、JournalofColloidandInterfaceScience362(2011)188–193ContentslistsavailableatScienceDirectJournalofColloidandInterfaceSciencewww.elsevier.com/locate/jcisPhotochromism-baseddetectionofvolatileorganiccompoundsbyW-dopedTiO2nanofibersa,c,⇑b,caccMingJin,XintongZhang,HongtingPu,ShunsukeNis
2、himoto,TaketoshiMurakami,c,⇑AkiraFujishimaaInstituteofFunctionalPolymerMaterials,SchoolofMaterialsScienceandEngineering,TongjiUniversity,4800CaoanRoad,Shanghai201804,PRChinabCollegeofPhysics,NortheastNormalUniversity,5268RenminStreet,Changchun130024,PRChinacPhotocatalystGroup,Spec
3、ialResearchLaboratoryforOpticalScience,KanagawaAcademyofScienceandTechnology,KSPBldg.East412,3-2-1Sakado,Takatsu-ku,Kawasaki-shi,Kanagawa213-0012,JapanarticleinfoabstractArticlehistory:W-dopedTiO2nanofiberswithvariouscompositions(W/Ti:2–8%)werefabricatedbytheelectrospinningReceived
4、12April2011methodfromrespectiveprecursorsolutionscontainingtungsten(V)pentaethoxide,titaniumtetraiso-Accepted15June2011propoxide(TTIP),andpolyvinylpyrrolidone(PVP),followedwithcalcinationat550°C.MorphologicalAvailableonline23June2011andstructuralcharacteristicsofthesenanofiberswere
5、studiedwithSEM,XRDandXPS.W-dopinginhib-itedthecrystalgrowthandanatase-to-rutiletransformationofTiO2nanofibers.W-dopedTiO2nanofiberKeywords:matsshowedgoodphotocatalyticoxidationabilitiesforacetone.ObviouscolorchangefromwhitetobluePhotocatalystofmatsduringthephotocatalysisprocesscanbe
6、detectedbynakedeyes,whichprovidesagoodwayinPhotocatalyticoxidationdetectionofpollutantsinindoorair,especiallyforthevolatileorganiccompounds(VOCs).PhotochromismVolatileorganiccompoundsÓ2011ElsevierInc.Allrightsreserved.TiO2nanofiber1.IntroductionenergystorageabilityofWOx–TiO2systemc
7、ouldbeaffectedbytheinterfacialcontactstateandthecrystalstructureofWOx[9].Volatileorganiccompounds(VOCs)areanimportantclassofWO3–TiO2photocatalystshave,sofar,beenpreparedviaonesteppollutantsusuallyfoundintheindoorairthatimpacthumanflamesynthesis[16]andtwostepproceduresbysol–gel[17–2
8、0],health,comfortandproductivity[
