固定相光催化氧化技术的研究与进展赵峰

　　　　200212ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY226　　　　　　,,(,200092)[],、、,。[];;;[]TQ028.8　　[]A　　[]1006-1878(2002)06-0328-05　　20,,CO2H2O,。TiO2、、、,。,,。,。1　催化剂载体和催化剂固定方法1。　　2:;,、、,、()、、()、。、、—、。,—,,TiO2,TiO2、、。,TiO2,TiO2TiO2,。,—。,,:,;;。,,,-,,、、,[17,18]。2　固定相光催化氧化动力学与影响因素2.1　,,(2)。,。[]2002-05-14;[]2002-06-28[](59908006)[](1974—),,,,。1　[1]—[2]—[3][4]///—[5]/2,4-[6]—[7]—///JohnC.Crittenden[8]////JohnC.Crittenden[9]////Kayanosunada[10]—Yinzhang[11]////—TsukasaTorimoto[12]//—RalphW[13]—///DongHyunKim[14]—Dionysios.D[15]Kumara[16]2　[1][19]4-BS、lnCt,S.Lee[20]3×104～1.5×105pfu/mL,,YinZhang[11]////,,4JohnC[9]////,,　　[21],L-H,L-H,,L-H。2.2　2.2.1　。,TiO2。,TiO2TiO2,,。[22],5;,1052[23],20。。,。2.2.2　,·329·　6　　　　　　　　　　　　　.,。,。(500W)[24],。Suri,90%4[25]。YinZhang,(),40%[11];,。,。,。[26],。D.Bahnemann,[27]。,。。2.2.3　pH,pH、,。YinZhang[11],pH3～7,pH5。TiO2[2],pH,。2.2.4　,Mills4-CP6kJ/mol[28],K.Hofstadier4-CP20.6kJ/mol[18]。,。2.2.5　,。[7]:,,,;,;,。2.2.6　,、、、。,。Fe3+Ag+SiO2TiO2(DDVP)[29],Fe3+DDVP,Fe3+;Ag+Fe3+,Ag+Ag,DDVP。,。,。[7],:HCO3-、SO42-、Cl-,TiO2;。3　固定相光催化氧化技术实用化需解决的几个问题3.1　3.1.1　TiO2,,380nm,,。,;,,[30]、[31],,。3.1.2　TiO2,,(),·330·　　　　　　　　　　　　　　　　　　2002　22　,。,,,。,。3.2　387.5nm,TiO2-,。,1%。TiO2,,,,。,,John.CTyndall[9],TiO2,。N.J.Peill-,[32]。3.3　,,、,,。、、,,。[2],[8]。,。4　结语　　,CO2、H2O。、、,。1　.[J].,2001,22(1):41～442　.TiO2[J].,2001,17(10):9～113　.[J].,2001,23(3):61～624　.TiO2[J].,2001,21(7):26～275　.2,4-[J].,1999,25(3):151～1546　.[J].,1999,20(3):368～3727　.TiO2[D].:,19968　JohnC.Crittenden.DecontaminationofWaterUsingAdsorptionandPhotocatalysis[J].Wat,Res.,1997,31(3):411～4189　JohnC.Crittenden,YinZhang.SolarDetoxificationofFuel-ContaminatedGroundwaterUsingFixed-BedPhotocatalysts[J].Wat.Environ.Res.,1996,68(3):270～27810　KayanoSunada,YoshihidoKikuchi.BactercidalandTiO2ThinFilmPhotocatalysts[J].Environ.Sci.&Technol.,1998,32(5):726～72811　YinZhang,JohnC.Crittenden.Fixed-BedPhotocata-lystsforSolarDecontaminationofWater[J].Environ.Sci.Technol.1994,28:435～44212　TsukasaTorimoto,ShigeyoshiIto.EffectsofAdsor-bentsUsedasSupportsforTitaniumDioxideLoadingonPhotocatalyticDegradationofPropyzamide[J].Environ.Sci.Technol.1996,30:1275～128113　RalphW.Matthews.PhotooxidativeDegradationofColouredOrganicsinWaterUsingSupportedCatalystsTiO2onSand[J].Wat.Res.1991,25(10):1169～117614　DongHyunKim,MarcA.Anderson.Photoelectroca-talyticDegradationofFormicAcidUsingaPorousTiO2Thin-FilmElectrode.Environ[J].Sci.Technol.1994,28:479～48315　DionysiosD.Continuous-ModePhotocatalyticDegra-dationofChlorinatedPhenolsandPesticidesinWaterUsingaBench-ScaleTiO2RotatingDiskReactor[J].AppliedCatalysis,2000,B(24):139～15516　KumaraGRRA.ContinuousFlowPhotochemicalReactorforSolardecntaminationofWaterUsingIm-·331·　6　　　　　　　　　　　　　.mobilizedTiO2[J].SolarEnergyMaterials&SolarCells,1999(58):167～17117　N.J.Peill.Solar-PoweredPhotocatalyticFiber-OpticCableReactorforWasteStreamRemediation[J].JournalofSolarEnergyEngineering,1997,119:229～23618　K.Hofstadler,RupertBauer.NewReactorDesignforPhotocatalyticWaterTreatmentwithTiO2Immobi-lizedonFused-SilicaGlassFibers:Photomineralizationof4-Chlorophenol[J].Environ.Sci.Technol.,1994,28:670～67419　.[J].,1996,16(4):406～41120　S.Lee,K.Nishida.PhotocatalyticInactivationofPhageQβbyImmobilizedTitaniumDioxideMediatedPhotocatalyst[J].Wat.Sci.Tech.1997,35(11/12):101～10621　,,.[J].,1999,15(2):14～1722　.TiO2[J].,2000,21(4):457～46023　.TiO2[J].,1999,20(4):398～40324　.[J].,1998,19(1):36～3925　Suri.R.P.S.,LiuJ.B..HeterogeneousPhoto-catalyticDestructionofHazardousOrganicContami-nantsinWater[J].Wat.Environ.Res.,1993,65:665～67326　.[J].,2001,22(4):56～5927　D.Bahnemann,MechanisticStudiesofWaterDetoxi-ficationinIlluminatedTiO2Suspensions[J].Sol.Een.Mater.,1991,24:564～58328　MillsA.,MorrisS..Photomineralizationof4-ChlorophenolSensitizedbyTitaniumDioxide:AStudyoftheInitialKineticsofCarbonDioxidePhotogenera-tion[J].Photochem.Photobiol.A:Chem.,1993,71:75～8329　.TiO2TiO2[J].,2001,22(2):196～19930　.TiO2[J].,1998,12:21～2431　.TiO2[J].,2000,21(2):165～17032　N.J.Peill.DevelopmentandOptimizationofaTiO2-CoatedFiber-OpticCableReactor:PhotocatalyticDegradationof4-Chlorophenol[J].Environ.Sci.Technol.,1995,29:2974～2981ResearchandDevelopmentofImmobilePhasePhotocatalyticOxidationTechnolgyZhaoFeng,WeiHongbin,XuDimin(SchoolofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China)Abstract:Theresearchachievementsconcerningimmobilephasephotocatalyticoxidationtechnologyarereviewedindetail.Themechanismofphotocatalyticoxidation,thekineticprinciple,thecatalystcarri-er,theimmobilizationmethodsofthecatalystandtheaffectingfactorsarediscussed.Thefuturedevel-opmentorientationofimmobilephasephotocatalyticoxidationtechnologyisexplored.Keywords:immobilephase;photocatalyticoxidation;titaniumdioxidemembrane;wastewatertreatment·332·　　　　　　　　　　　　　　　　　　2002　22