光电催化氧化技术中光电反应器的研究与发展肖俊霞

2007263CHEMICALINDUSTRYANDENGINEERINGPROGRESS·331·510640X703.1A10006613200703033106Researchprogressofphotoelectro-reactorinphotoelectro-catalyticoxidationtechnologyXIAOJunxiaHUJijieYANHongWEIChaohai(CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,Guangdong,China)AbstractThephotoelectro-reactorswereintroducedfromtwotypesofslurryphotoelectro-reactorandimmobilephotoelectro-reactor.Aneffectivewayofmodifyingphoto-electrodebydepositionofmetalandcouplingofsemiconductorusedtoimprovetheoxidationefficiencyofimmobilephotoelectroreactorwaspointedout.Themainfactors,includinglightsource,material,additionalappliedpotential,solutionconditionandreactionatmosphere,whichaffectedtheefficiencyofphotoelectro-reactorwerediscussed.Besides,someproposalsforfurtherstudiesofphotoelectro-reactorwerepresented.Keywordsphotoelectro-catalyticoxidationtechnologyphotoelectro-reactorsemiconductorphotoelectrode[1]·OH[27][8][911][e-mail][e-mail]:10.16085/j.issn.1000-6613.2007.03.007200726·332·TiO2[1214]RuO2[15]WO3[16]TiO21.1[17]TiO2-TiO2[18]TiO2TiO233.6%10%82.8%212345*2222267222222O(g)O(d)O(s)O(s)+eO(s)HO,HO,HO+eOH+organicpollutantCO+HO⎯→⎯→⎯→⎯→⎯→⎯⎯→⎯⎯→·4[1]TiO2O22H2O264[1920]TiO2COD9587786889711COD0.0427min10.0140min10.0013min1UTiO211.2[2124][25][2628]-[13,2930][31][14][32][33][26]-Candal[34]TiTiO2/Ti--[12,3536]PtCu(SCE)Ag/AgCl[15,32]3·333·[15,32,37][25,33][2233]H2TiO2/TiSCEAg126cm2TiO22H22.1Au[3839]Pt[4041]FermiFermiFermi-[39]AuTi/TiO2Ti/Au-TiO2Au3.4Ti/Au-TiO2Ti/TiO22.46TiO2[42]CuTiO2Cu2+TiO2Cu-TiO2/ITO-Cu-TiO2CuTiO22.82.2--Vinodgopal[35,43]SnO2/TiO20.83V4-7TiO210Pelegrini[21]Ti/Ru0.3Ti0.7O21960min1995%1934%15%33.1[21][34][35]-[12][44]9.70mW·cm24.38mW·cm21.50mW·cm20.86mW·cm2200726·334·Chang[45]50mW·cm2-3.2160nmPelegrini[21]Ti/Ru0.3Ti0.7O21919TOC52%TOC26%3.3[46]TiO2/Ti(1a)(1b)(2)(3a)(3b)2OH(TiO)⋅+⎯⎯→(1a)22221OHOHHOO+HO2⋅+⋅⎯⎯→⎯⎯→(1b)OHR⋅+⎯⎯→(2)+hRR+⎯⎯→⋅(3a)+cb-RRe⋅⎯⎯→+(3b)[47]EISTiO2CSCHidaka[31]-TiO23.4pH[48]TiO2/TipH·OHpHTiO2pH6.3pHpHTiO2·OH·OHpHTiO2pHpH·OHpHZanoni[12](18)105mol·L13R8105mol·L1[49]2,4-3·335·2,4-c00.50mmol·L12,4-c00.65mmol·L13.5O2[50]-TOCTOCVinodgopal[51]P251umOTE/TiO2PtSCE4-4-CPO24-CP4-4-CCN2HQ[9]Luo[16]NaClKNO3NaClO4Na2SO4Carneiro[52]1616pHpH10Na2SO4pH6NaCl164[1]HoffmannMRMartinSTChoiWetalEnvironmentalapplicationsofsemiconductorphotocatalysis[J]ChemRev1995956996[2]LiXZLiuHLYuePTPhotoelectrocatalyticoxidationofRoseBengalinaqueoussolutionusingaTi/TiO2meshelectrode[J].Environ.Sci.Technol.20003444014406[3][J]20042512529[4][J]2004246674678[5]Ti/TiO2[J]2001116977981[6]PelegriniRTFreireRSDuranNetalPhotoassistedelectrochemicaldegradationoforganicpollutantsonaDSAtypeoxideelectrodeprocesstestforaphenolsyntheticsolutionanditsapplicationfortheE1bleachkraftmilleffluent[J].Environ.Sci.Technol.2001352849–2853[7][J]20061913034[8]SOS/umu[J]20061(2)155159[9][J]2005174622630[10][J]20031992528[11][J]200525121317[12]ZanoniMVBSeneJJAndersonMAPhotoelectrocatalyticdegradationofremazolbrilliantorange3Rontitaniumdioxidethinfilmelectrodes[J]JournalofPhotochemistryandPhotobiologyAChemistry20031575563[13]KesselmanLMLewisNSHoffmannMRPhotoelectrochemicaldegradationof4chlorocatecholatTiO2electrodescomparisonbetweensorptionandphotoreactivity[J]EnvironSciTechnol.19973122982302[14]VinodgopalKHotchandaniSKamatPVElectrochemicallyassistedphotocatalysis.TiO2particulatefilmelectrodesforphotocatalyticdegradationof4Chlorophenol[J]JPhysChem.19939790409044[15]SongQQuJHMechanismandkineticsof2chlorophenoldegradationindrinkingwaterbyphotoelectrochemicalsynergiceffect[J]ScienceinChina(SeriesB)200346(3)259270[16]LuoJHepelMPhotoelectrochemicalmineralizationofnaphtholblueblackdiazodyeonWO3filmelectrode[J]ElectrochimicaActa200726·336·20014629132922[17]Fenton[J]2003246106111[18][J]2000213399403[19]AnTChZhuXHXiongYFeasibilitystudyofphotoelectrochemicaldegradationofmethylenebluewiththreedimensionalelectrodephotocatalyticreactor[J]Chemosphere200246897903[20]AnTChXiongYLiGYetalSynergeticeffectindegradationofformicacidusinganewphotoelectrochemicalreactor[J]JournalofPhotochemistryandPhotobiologyAChemistry2002152155165.[21]PelegriniRTPeraltaZamoraPAndradeARdeetal.Electrochemicallyassistedphotocatalyticdegradationofreactivedyes[J]AppliedCatalysisBEnvironmental1999228390[22]LengWHZhangZZhangJQPhotoelectrocatalyticdegradationofanilineoverrutileTiO2/Tielectrodethermallyformedat600[J].JournalofMolecularCatalysisAChemical2003206239252[23]SunCCChouTCElectrochemicallypromotedphotocatalyticoxidationofnitriteionbyusingrutileformofTiO2/Tielectrode[J]JournalofMolecularCatalysisAChemical2000151133145[24]TiO2[J]2002236108110[25]ByrneJAEgginsBRPhotoelectrochemistryofoxalateonparticulateTiO2electrodes[J].JournalofElectroanalyticalChemistry19984576172[26]HidakaHShimuraTAjisakaKetalPhotoelectrochemicaldecompositionofaminoacidsonaTiO2/OTEparticulatefilmelectrode[J]JournalofPhotochemistryandPhotobiologyAChemistry1997109165170[27]VinodgopalKBedjaIKamatPVNanostructured