光催化氧化处理废水的研究概况

综述专论,2010,18(5):59~61SCIENCE&TECHNOLOGYINCHEMICALINDUSTRY:20100610:(1989-),,,,***:(50903045)TiO2*沈兆存,李昌峰,沈兆欢,刘英军,孙瑾**(,266071):TiO2光催化氧化法降解废水是目前废水处理方面的热点,为彻底解决废水处理问题提供了新的手段综述了TiO2光催化氧化降解废水的反应机理影响因素及提高光催化效率的途径同时,指出了光催化降解废水技术需要进一步解决的问题:TiO2;废水处理;光催化氧化:X52:A:10080511(2010)05005903TiO2,1976,Carey[1],TiO2,,,TiO2,1TiO2TiO2,11TiO2,,(387nm)TiO2(3.2eV),,,e-,h+,,,OH,O-2,,,CO2,2TiO2TiO2,(O2H2O2),2.1TiO2,,,,[2]TiO216nm,,30nm10nm,45%,,TiO2,,,TiO2,2~4g/L[3]2.2TiO23.2eV,387.5nm,387.5nme-h+,,BenoitMarquie[4],,50%80%,30%60%[5]TiO2,:A/V1.14cm2/mL,25W/m50W/m,0.3868h-10.8834h-12.3pHTiO2[6]pHCOD,pH,1TiO2pH[7],pHTiO2,,,TiO2,pH6.01pHCODpH45678910COD/%67.464.654.952.044.341.236.8/%87.574.272.171.069.162.254.82.4,,TiO2,O2H2O2H2O,,3TiO2TiO2,3.1TiO2,,,Kwon[8]WO3TiO2,WO3TiO2,P25TiO25.9WO3(Lewis),,OH-OH3.2TiO2,TiO2,TiO2,,TiO2Chen[9]TiO2AO7,TiO2/SiO2AO7TiO212.3,SiO2,TiO2,TiO23.3TiO2,,3.2eV,,Sung[10]Ag/TiO2B,Ag/TiO2TiO230%Zhu[11]TiO2XRG,,TiO2,,TiO2,TiO2[12],,OH,,4TiO2,,6018,TiO2:TiO2;TiO2;,,,[][1]CareyJH,LawrenceJ.PhotodechlorinationofPCBsinthepresenceoftitaniumdioxideinaqueoussuspensions[J].TosineHMBullEnvironContainToxicol,1976,16(6):697~701.[2],,,.[J].,1998,19(3):229~233.[3]HuChun,WangYizhong,TangHongxiao.Destructionofphenolaqueoussolutionbyphotocatalysisordirectphotocatalysis[J].Chemosphere,2000,(41):1205~1209.[4]BenoitMarquieF,WilkenhonerU,SimonV.VOCPhotodegradationatthegassolidinterfaceofaTiO2photocatalystpartI:1butanoland1butylamine[J].PhotochemistryandPhotobiologyA:Chemistry,2000,132:225~232.[5],,.[J].,2009,(2):43~46.[6],.TiO2[J].,2009,29(8):25~27.[7],.[J].:,2004,21(3):229~232.[8]KwonYT,SongKY,LeeWI.PhotocatalyticbehaviorofWO3loadedTiO2inanoxidationreaction[J].JournalofCatalysis,2000,191(1):192~199.[9]ChenYingxu,WangKan,LouLiping.PhotodegrationofdyepollutantsonsilicagelsupportedTiO2particlesundervisiblelightirradiation[J].JournalofPhotochemistryandPhotobiologyA:Chemistry,2004,163:281~287.[10]SungSuhHM,ChoiJR,HahHJ.ComparisonofAgdepositioneffectsonthephotocatalyticactivityofnanoparticulateTiO2undervisibleandUVlightirradiation[J].JournalofPhotochemistryandPhotobiologyA:Chemistry,2004,163(1~2):37~44.[11]ZhuJiefang,ZhengWei.CharacterizationofFeTiO2photocatalysissynthesizedbyhydrothermalmethodandtheirphotocatalyticreactivityforphotodegradationofXRGdyedilutedinwater[J].JournalofMolecularCatalysisA:chemical,2004,216:35~43.[12],,.[J].,2008,25(2):22~25.ResearchoverviewaboutwastewatertreatmentbyTiO2photocatalyticoxidationSHENZhaocun,LIChangfeng,SHENZhaohuan,LIUYingjun,SUNJin(InstituteofPolymerMaterials,QingdaoUniversity,Qingdao266071,China)Abstract:TiO2photocatalyticoxidationdegradationofwastewaterisaresearchfocusatpresent,providingnewmeansforwastewatertreatment.ThispaperreviewedthemechanismofTiO2photocatalyticoxidation,influencingfactorsandimprovementmeasuresofthephotocatalyticefficiency.Meanwhile,theproblemsofthistechnologywereproposed.Keywords:TiO2;Wastewatertreatment;Photocatalyticoxidation615,.TiO2