VOCs30mg/m3[1,2]0.40mg/m31.50mg/m310.08mg/m315[3]1[4]≤0.1g/m3[5]21TiO2EgTiO2[6]1pH=72VBCBh+e-2Ah+2BCD[7]1985-No.GAFMRC201302⋅561000X511A2095-3518201404-62-02201444185LIGHTINDUSTRYSCIENCEANDTECHNOLOGY6221985KagitaniH2SNH31988[8]1990DibbleTiO2VOCs[9]TiO23.2eV≤387nmTiO2TiO2TiO24fLewisLa3+,Pr3+,Nd3+,Sm3+Eu3+TiO2[10]TiO2XuLa3+-TiO2TiO2[11]3CO2H2O2080[12]4-TiO2TiO2[1].TiO2[J].,2008,6(5):13-17.[2],.[J].,2008,2(5):296-297.[3].[J].,2008,(2):45-45.[4],.[J].,1994,12(4):24-28.[5],,,.[J].,2007,28(4):52-54.[6]SumitsawanS,ChoJ,SattlerML,etal.PlasmaSurfaceModifiedTiO2Nanoparticles:ImprovedPhotocataly-ticOxidationofGaseousm-Xylene[J].Environmentalscience&technology,2011,45(16):6970-6977.[7].TiO2VOCs[D].,2012.[8],,.-[J].,1994,15(3):279-282.[9]DibbleL.A.Kineticsofthegas-solidheterogeneousphotocatalyticoxida⁃tionoftrichloroethylenebynearUVilluminatedtitaniumdioxide[J].cataly⁃sisletters,1990,4:345-354.[10]LiFB,LiXZ,AoCH,etal.EnhancedphotocatalyticdegradationofVOCsusingLn3+TiO2catalystsforindoorairpurification[J].Chemo⁃sphere,2005,59(6):787-800.[11]XuAW,GaoY,LiuHQ.ThePreparation,Characterization,andtheirPhotocatalyticActivitiesofRare-Earth-DopedTiO2Nanoparticles[J].Jour⁃nalofCatalysis,2002,207(2):151-157.[12],,,.3[J].,2007,(11):142-143.63