光催化氧化处理印染废水新进展

12Vol.1No.220089EnvironmentandEcologyinThreeGorgesJul.2008:200820521:(1975-),,,,(,400020):,,,,,:;:X703:A:167422842(2008)0220034203DevelopmentofPhotocatalyticOxidationinTreatingPrintingandDyeingWastewaterLILing(EnvironmentalMonitoringStationofChongqingJangbeidistrict,chongqing400020,China)Abstract:Thispaperintroductsthephotocatalyticoxidationsprincipleanditseffects.Italsointroductsthemethodsoftreatingeffectivelyprintinganddyeingwastewater.Meanwhilethispaperpointsoutthemainproblemsofdecrea2singthepollutantintheprintinganddyeingwastewater,affordsthegistsofresearch.Keywords:photocatalyticoxidation;dyeingwastewater2070,A.FujishimaK.HondaTiO2[1],,,PVA,1,,,,,[2],,,[3],,22.1TiO2CdSZnOFe2O3SnO2WO3W,Fe2O3,;TiO2,,:[4],TiO2O2-[5];TiO2[6]TiO2,,100%,CODCr85.6%,,,,,,;,,,2.2[7];,,-,CODCr[8],[9]500W300W,1.7,1.8,2.4,500W300W2.3,,,,,,2.4,,[10],,O2,CODCr2.5pHpH,pHpH[11],,pH4.2110.01,60%80%33.1,,(),:[12],CODCr68.4%,89.1%[13],80%,70%3.2,,,,,,,,,,:H2O2/Fe2+,Fe2+HYoneyama[14]WO32Fe2O3[15],CdSWWO3,CdS2TiO2,TiO2,[16]CdS,[17]-(Sol2Gel)1020nmTiO2,TiO2,TiO23.3,:,,,[18],,532:98%,,,:KT,,,32%4,,,,,,:[1]Fujishim&A,HondaK.ElectrochemicalPhotolysisofWaterataSemi2condoctorElectrode[J].Nature,1972,238(5358):3738.[2].[M].:,1976.2472253.[3].[J].,1997,23(5):34238.[4]Matthews,RalpHW.PhotocatalyticOxidationoforganiccon2taminantsinWater:anaidtoenvironmentailpreservation[J].Pure&Appl.chem.,1992,64(9):128521290.[5]Katok.CrystalStructuresofTiO2ThinCoatingsPreparedfromtheAlkoxideSolutionvia,theDip2CoatingTeachniqueAffectingthePhotocatalyticDecompositionofAqueousAceticAcid[J].JournalofMaterialsScience,1994,29:59115915.[6],,.[J].,2001,23(3):61262.[7],,,.[J].,2000,22(1):59263.[8].H2O2/Fe2+[J].,2001,1(4):65267.[9],,.[J].,1998,19(1):124.[10],,,.[J].,2001,19(1):13215.[11],,.TiO2[J].,2000,20(1):11214.[12],,.TiO2[J].,2003,19(2).[13],,,.[J].,2003,19(1):528.[14]HYoneyama.YYamashitaandHTamura[J].Nature,1979,282:20227.[15],,.WO3/CdS/W[J].,2001,21(2),9212.[16],,,.CdS[J].,2000,63(2):32236.[17],,,.[J].,2000,12(1):14219.[18],.[J].,2000,20(1):14218.(3)33.11996-2005,,3.2,,,3.3,,,:[1],,.[J].,2005(5):1619.[2],,.[M].:,2002.[3].[M].:,1997.[4],,.2005[J]..2006(1):242245.[5],,.[J].,1993(5):5564.[6].[J].,1985(1):3542.631