光催化氧化技术及其发展刘正宝

收稿日期:1997-06-15　第一作者刘正宝,1961年生,1988年毕业于南京化工大学,现在南京化工大学应化系,副系主任,副教授。南京化工大学应用化学系(江苏南京,210009)　　刘正宝　姚清照　　　。。——,。　　　　　　　,、。,、。,,、,。70,JohnH.CareyTiO2(),,CO2H2O,。,,,。,——。1　　　、。TiO2,TiO2、、。TiO2,,〔1〕。:,(e),(h+),,,。〔2,3〕,。1.1　催化剂为悬浮相TiO2　　,TiO2,。。A.L.PrudenD.F.Ollio1983,、。,〔4〕1989LBS、O,,,LBSCOD70%、O65%。TiO2。1.2　催化剂为固定相TiO2　　,、,,。。。　　YinZhang〔5〕、、、TiO2。,。,3。,〔6,7〕,。12〔8〕。　　,,;,图1　两种类型反应器中苯酚的分解—7—工业水处理1997,17(6)　　　　　　　　　　　　　　　　　　　　　　　光催化氧化技术及其发展2　。:TiO2TiO2;TiO2,TiO2。1.3　改善催化剂活性　　。MarciaM.Kondo、KenjiHerada〔9〕TiO2,Ag、Pt、Nb、RoCO2,TiO2,,,,。e、h+。,TiO2Pt,TiO2TiO2Pt,TiO2h+。ePt,e、h+。O2、H2O2、,e、h+。　　,,,。K.Hofsttadler〔10〕、,。4-,,。,e-h+。2　　　,,:,,、。,——(Photoelectrocatalytic)〔11～18〕。　　,()、。,,,。,。、、。,。。,,。,(),。1　MVRao,KRajeshwur,VRPaiVernekeretal.J.Phys.Chem.,1980,84:19872　PrashantVKamat.Chem.Rev.,1993,93,2673　,.,1994,18:904　.,1994,16(4):25　YinZhang,JohnCCritlenden.Environ.Sci.Technol.,1994,28:435～4426　.,1995,14(10):317　.,1993,12(6):168　.,1995,23(4):3939　KenjiHaradnetal.Wat.Res.,1990,24(11):141510　KHofstadlerandRapertBaure.Environ.Sci.Technol.,1994,28:43511　PrashantVKamat.CHEMTECH,1995,25(6):2212　DongHyunKimandMarcAAnderson.Environ.Sci.Tech-nol.,1994,28:479～48313　KVinodgopal.J.Phys.Chem.,1994,98:679714　HisaoHidakaandYvichiAsai.J.Phys.Chem.,1995,99:8244～824815　KVinodgopal.J.Phys.Chem.,1993,97:904016　LiuDandKamatPV.J.Phys.Chem.,1993,97:1076917　KVinodgopalandPrashantVKamat.CHEMTECH,1996,26(4):1818　KVinodgopalandPrashantVKamat.Environ.Sci.Technol.,1995,29:841—8—专论与综述　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　工业水处理1997,17(6)FUNCTIONSANDSTUDIESOFTHEMAGNETICFIELDEF-FECTONWATERTREATMENT　MaWei　etal(Environ-mentalEngineeringCollege,SouthChinaUniversityofTechnology,Guangzhou510641):Chin.J.Ind.WaterTreat.,17(6),1997,pp.1～3　　Thefunctionandmechanismresearchachievementofthemagneticfieldinwatertreatmentwererecountedrespec-tively.Thetechnicalprospectofthemultifunctionwhichwasthecombinedeffectofmagneticfieldandotherwatertreatmenttechnoligieswasexpounded.　　KeyWords　magneticfieldeffect,inhibition,magnet-icfilter,flocculationTREATINGWASTEWATERFROMCOKEMAKINGPLANTSBYUSINGFENTONREAGENT　GongZhijianandJinYing(TaiyuanUniversityofTechnology,Taiyuan030024):Chin.J.Ind.WaterTreat.,17(6),1997,pp.4～6　　ThedevelopmentofwastewatertreatmentbyusingFentonreagentwasexpounded.ThemechanismofFentonreagentandthetechniquesabroadofwastewatertreatmentbyusingFentonreagenttodecreaseCODweredescribed.ItwasindicatedthatthefeasibilityofusingFentonreagentshouldbeinvestigatedonthebasisofthepropertiesofwastewater.Thetechniquessuitablefordomesticuseweresuggestedtosolvedthepollutionproblemofwastewaterfromcokemakingplants.　　Keywords　coking,wastewatertreatment,FentonReagent,CODTECHNIQUEOFPHOTOCATALATICOXIDATIONANDITSDEVELOPINGTRENDS　LiuZhengbaoandYaoQingzhao(Dept.ofAppliedChemistry,NanjingChemicalEngineer-ingUniversity,Nanjing210009):Chin.J.Ind.WaterTreat.,17(6),1997,pp.7～8　　Theprincipleofphotocatalyticoxidationappliedtoor-ganicpollutantsbyusingsemiconductormaterialsisde-scribed.Thedevelopingprocessofphotocatalyticoxidationfromsuspendingcatalysttoimmobilecatalystandthemeth-odsofincreasingcatalystactivityarereviewed.Itispointedoutthatthecombinationofphotocatalyticoxidationandelectrochemistry—thetechniqueofelectrochemicallyassist-edphotocatalysisisanewwastewatertreatmenttechnique.　　Keywords　catalysis,photocatalyticoxidation,TiO2,semiconductorRESEARCHESONNEWPREPARATIONOFCHLORINEDIOXIDEINWATARTREATMENT　SunXiaoranetal(De-partmentofChemicalEngineering,HebeiInstituteofSci-enceandIndustry,Tangshan063009):Chin.J.Ind.WaterTreat.,17(6),1997,pp.9～10　　ByusingsodiumchlorateandacidAasrawmaterials,thepreparationofchlorinedioxidethroughoxidation-re-ductionprocesses,theinfluencesofvariousfactorsonthereactionaredisscussed,andthepreferentialconditionsareobtained.Thereactioniscarriedoutundermildconditionswithoutwasteacid,andtheyieldofchlorinedioxidecanreach90%,thepuritycanreach98%～99%.　　Keywords　chlorinedioxide,sodiumchlorate,sodiumpercarbonateRESEARCHESONTHENEWTYPEOFF-ADSORBENT　LiYongmingetal(BeijingResearchInstituteofAviationMaterials,Beijing100095):Chin.J.Ind.WaterTreat.,17(6),1997,pp.11～12　　TheapplicationpropertiesofanewkindofF-withhy-drouszirconiumoxideandcarrierarestudied.ThisproductischaracteristicoflargeF-exchangecapacity,longservicelife,easyregenerationandstrongselectiveionexchange.　　Keywords　wastewatertreatment,fluorideremoval,adsorbentANIMPROVEDRESUSCITATIVEAGENTFORPOLLUTEDCATIONEXCHANGERESINBYIRON　LiuShengpuandZhangFenglan(Dept.ofChem.Eng.,InnerMongoliaPolytechnicUniv.,Huhehaote010062):Chin.J.Ind.Wa-terTreat.,17(6),1997,p13　　Thecommonresuscitativeagentforpollutedcationex-changeresinbyironishydrochloricacid.Inordertofullyresuscite,thepercentageofhydrogenchlorideinhydrochlo-ricacidisashighas10%.ThispaperintroducesamixedsolutionofHCl-NaCl-Na2SO3asresuscitativeagent,inwhichthesepercentagesofcomponentsare4%,4%and0.08%respectively.　　Keywords　resuscitativcagent,pollutedcationex-changeresin,hydrochloricAcid,sodiumchloride,sodiumsulfiteASTUDYONDEEPTREATMENTOFWOOLWASHINGWASTEWATER　ZhangChengluetal(TeachingandRe-searchSec