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＊:2007-04-25:,,;(),,,。:1009-6094(2007)05-0039-04Fe2O3/UV/H2O2＊李爱梅1,朱亦仁1,于 昕1,鲁 玲1,张 弛2,解恒参2(1,221116;2,221116) :Fe2O3,,,,Fe2O3、H2O2、pH、。,Fe2O3/UV/H2O2、COD。Fe2O3、H2O2、pH、,:Fe2O31.0g/L,H2O20.5%(),pH3.0,300W3hCODCr93.3%,CODCr54mg/L。,Fe2O3。Fe2O3H2O2,H2O2,。,。:;;;:X793 :A0 ,、、,TiO2、ZnO,[1-7]。,,,、。Fe2O3(2.2eV),560nm,,。,Fe2O3,、、TiO2、,。Fe2O3。Fe2O3,,。1 1.1 1.1.1 F2O3(AR)、Fe(NH4)2(SO4)2(AR)、NaOH(AR)、H2O2(AR)、K2Cr2O7(AR)、Ag2SO4(AR)、(AR)、FeSO4·7H2O(AR)、H2SO4(AR)。1.1.2 SGY-1();300W;PHS-3pH()。1.2 ,,,CODCr800mg/L。1.3 Fe(Ⅲ)、[8],1986FaustHoffmann[9]Fe(Ⅲ)Fe(Ⅲ)。1995PulgarinKiwi[10]α-Fe2O3,2-3:1)Fe(Ⅲ),-,Fe(Ⅲ)Fe(Ⅱ)O2;2)Fe2O3h+2-,Fe(Ⅲ)e-,Fe(Ⅲ)(Koble);3)Fe(Ⅲ)—OH·OH。,[11],,3,,。1.4 Fe2O3,(pH)H2O2(30%),SGY-1,Fe2O3,300W,CODCr,CODCrE。E=COD0-CODtCOD0×100%(1) ECODCr,%;COD0CODCr,mg/L;CODttCODCr,mg/L。2 2.1 Fe2O3CODCr2.1.1 Fe2O3CODCr20mLFe2O3,pH3.0,300W2h,,CODCr,E,1。1,Fe2O3,CODCr,Fe2O30.020g,。,,,Fe(Ⅲ),;,Fe2O3OH·,。Fe2O3,OH·(2OH·※H2O2),;Fe2O3,3975200710 安全与环境学报JournalofSafetyandEnvironment Vol.7 No.5 Oct,20071 Fe2O3CODCrFig.1 InfluenceofthemassofFe2O3onCODCreliminationrate,。2.1.2 Fe2O3Fe2O3,3,(pH3.0),2。3:1)20mL0.020gFe2O3,300W,,CODCr,E;2)20mL0.020gFe2O3,;3)20mL,,300W。2:,1hCODCr0.6%,,;,,CODCr,CODCr,;,1hCODCr30.9%,30%,3hCODCr38.1%。,Fe2O3,Fe2O3。2.2 pHCODCr20mL0.020gFe2O3,pH,300W2h,CODCr,E,3。3,pH。,,CODCr。:pHOH·,OH·,。,pH3。2.3 H2O2CODCr2.3.1 H2O2H2O2,-,OH·,OH·(H2O2+hν※2OH·)[11],OH·。OH·,H2O2CODCr。2 Fig.2 Comparisonofdifferentsystems'degradationresults3 pHCODCrFig.3 InfluenceofinitialpHonCODCreliminationrate2.3.2 2.3.1,3,(pH3.0,300W):1)20mL0.020gFe2O3,0.5%H2O2,,CODCr,E;2)20mL0.5%H2O2,;3)20mL0.020gFe2O3,H2O2。4,:,CODCr;H2O2,1h,4h;,1h,2h70%,,。Fe2O3-H2O2,。5hFe2O3-H2O2CODCr,(1～3h),3h67.4%,Fe2O3-H2O23h93.3%。,、。2.3.3 H2O2CODCr20mL0.020gFe2O3,40 Vol.7 No.5 安全与环境学报 754 Fig.4 Comparisonofdifferentsystems'treatmentresultspH3.0,H2O2,300W2h,,CODCr,E,5。5,H2O20.5%,CODCr66.7%,。H2O2,OH·;OH·,OH·(2OH·※H2O2),OH·。H2O2,;,H2O2OH·[12,13]。H2O2+OH·※H2O+HO2·(2)HO2·+OH·※O2+H2O(3)HO2·,OH·,[13]。CODCr,H2O2,。2.4 4,CODCr,3h93.3%。:Fe2O31.0g/L,pH3.0,H2O20.5%(),300W3h。CODCr93.3%,CODCr54mg/L。2.5 、、、,300℃3h,,,,3CODCr90%,。,。3 Fe2O3/UV/H2O2,。Fe2O3,,Fe2O3H2O2,H2O2。Fe2O3、、,。5 H2O2CODCrFig.5 InfluenceofdosageofH2O2onCODCreliminationrate4 1)Fe2O3、H2O2、pH、,,。2)Fe2O3/UV/H2O2:Fe2O31.0g/L,30%H2O20.5%(),pH3.0,300W3h。CODCr800mg/L,CODCr93.3%,CODCr54mg/L,。References():[1] OHNISHIH,MATSUMURAM,TSUBOMURAH,etal.Bleachingofligninsolutionbyaphotocatalyzedreactonsemiconductorphotocatalysis[J].IndEngChemRes,1989,28(2):719-724.[2] KOBAYAKAWAK,SATOY,NAKAMURAS,etal.Photodecomposi-tionofkraftlignincatalyzedbytitaniumdioxide[J].BullChemSocJpn,1989,62(11):3433-3436.[3] MANSILLAHD,VILLASENORJ,MATURANAG,etal.ZnO-catal-ysedphotodegradationofkraftblackliquor[J].JPhotochemPhotobiolA:Chem,1994,78(3):267-273.[4] VILLASENORJ,MANSILLSH.EffectoftemperatureonkraftliquordegradationbyZnOphotoassistedcatalysis[J].JPhotochemPhotobiolA:Chem,1996,93(2):205-209.[5] KSIBIM,AMORSB,CHERIFS,etal.PhotodegradationofligninfromblackliquorusingaUV/TiO2system[J].JPhotochemPhotobiolA:Chem,2003,154(24):211-218.[6] ZHUYiren(),XIEHengshen(),YAOJian(),etal.ThepreparationofZnOpowderanditsapplicationinthepapermak-ingwastewaterbyphotocatalysistreatment[J].JournalofNanjingUniversityofTechnology(),2005,3(5):21-25.[7] ZHUYiren(),XIEHengshen(),ZHANGZhenchao().Quickpaper-makingwastewatertreatmentbyTiO2photocat-alyzedoxidation[J].JournalofSafetyandEnvironment(),2005,1(1):20-23.[8] LELANGJK,BARDAJ.Photochemistryofcolloidalsemiconductingironoxidpolymorphys[J].JPhysChem,1987,91(19):5076-5083.[9] FAUSTBC,HOFFMANNMR.Photoinducedreductivedissolutionofα-Fe2O3bybisulfite[J].EnvironSciTechnol,1986,20(9):943-948.[10] PULGARINC,KIWIJ.Ironoxide-mediateddegradation,photodegra-dation,andbiodegradationofaminophenols[J].Langmuir,1995,11(2):519-526.41200710 ,:Fe2O3/UV/H2O2 Oct,2007[11] JIANGTingda().Lignin()[M].Beijing:ChemicalIndustryPress,2001:17-19.[12] XUYuehua(),GUGuobang(),LIXinjun().Astudyoffactorsaffectingphotocatalyticdegradationofmethami-dophos[J].JournalofSouthChinaUniversityofTechnology:NaturalScience(:),2001,29(5):68-71.[13] BALCIOGLUIA,INDY.Photocatalyticdegradationoforganiccon-taminateinsemiconductorsuspensionswithaddedH2O2[J].JEnvironSciHealthA,1996,18(2):123-128.Photocatalyticdegradationofpaper-makingsewagewithFe2O3/UV/H2O2LIAi-mei1,ZHUYi-ren1,YUXin1,LULing1,ZHANGChi2,XIEHeng-shen2(1CollegeofChemistryandChemicalEngineering,XuzhouNormalUniversity,Xuzhou221116,Jiangsu,China;2XuzhouInstituteofArchitecturalTechnology,Xuzhou221116,Jiangsu,China)Abstract:Thepresentarticlehasgiventheauthor'srenovatedstudyresultsonusingphotocatalyticdegradationofsewagefrompaper-mak-ingplantwithFe2O3asphotocatalystandhigh-voltagemercurylampasalightsource.Fortheintroductorypurpose,firstofall,thepaperhasanalyzedthebasicprincipleofphotocatalyticdegradation.Then,ithascomparedtheresultsofusinghisrenovatedmethodtoshowitsdistinctivenessfromothersandmainaffectingfactorssuchastheamountofFe2O3andH2O2added,pHvaluewithir