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当前位置:首页 > 商业/管理/HR > 公司方案 > 掺铜TiO2薄膜光催化降解碱性品红的研究齐帅
—————————————————————————————————————————————Cu-dopingTiO2thinfilmanditsphotocatalyticdegradationofalkalinefuchsinQiShuai,LiuYixin,MengLihua,WangAnan(DepartmentofEarthandSpaceSciences,UniversityofScienceandTechnologyofChina,Hefei230026,China)TiO2,,,(,230026)[]-CuTiO2,(SEM)TiO2,。,TiO2、,。,,,,,;,。,30.0g/L、10mg/L,5d83.61%。TiO2TiO2。3,。[];-;CuTiO2;[]X703.1[]A[]1005-829X(2009)05-0050-03Abstract:TheevenlydistributedCu-dopingTiO2thinfilmsdepositedoncarriersilicagelhavebeenpreparedbysol-gelprocessing.TheloadingconditionsofTiO2nanoparticlesoncarrierareobservedonscanningelectronmicroscope(SEM).TheresultsshowthatTiO2nanoparticlesarehomogenizedoncarrier.Undernaturalsunlight,therelationshipofphotocatalyticdegradationofalkalinefuchsinonTiO2thinfilmswiththeinitialconcentrationofthesolutionandthedosageofcatalystisstudied.TheefficiencyofphotocatalysisofCu-dopingcatalystiscomparedwithnon-Cu-dopingcatalyst.Theresultsshowthattheefficiencyofphotocatalyticdegradationincreaseswiththeincreaseofcatalystdosage,butwhencatalystdosagereachesacertainamount,theefficiencyofphotocatalyticdegradationincreasesless.Theefficiencyofphotocatalyticdegradationreduceswiththeincreaseofinitialalkalinefuchsinconcentration.Consideringeconomicefficiencyandefficiencyofphotocatalyticdegradation,whenthecatalystdosageis30.0g/Landinitialalkalinefuchsinconcentrationis10mg/L,therateofphotocatalyticdegradationreaches83.61%in5d.TheCu-dopingTiO2filmhashigherphotocatalyticactivitythannon-Cu-dopingTiO2film.Afterusingthecatalystthreetimes,itsstabilityisassured.Keywords:alkalinefuchsin;sol-gelprocess;Cu-dopingTiO2thinfilm;photocatalysis〔1〕、〔2〕,TiO2,。TiO2,,〔3-6〕。(3.2eV),29520095IndustrialWaterTreatmentVol.29No.5May,2009[4]BhardwajA,HartlandS.Dynamicsofemulsificationanddemulsi-ficationofwaterincrudeoilemulsions[J].Ind.Eng.Chem.Res.,1994,33(5):1271-1279.[5],,.[J].,2007,24(3):236-239.[6]GB8978—1996[S].[](1969—),2001,,,。:13826299043,E-mail:ceqzhou@scut.edu.cn。[]2009-01-21()50——2009-05,29(5),:TiO2,(10%)。,,〔7-10〕。Ag、Fe、Zn,Cu。,TiO2,。,TiO2TiO2,,〔11-13〕。,-CuTiO2。11.1:722S(),,。:,;[Ti(OC4H9)4],;,;,;,;。SCRC,。1.2(1),A,20∶38。(2)、、B,V()∶V()∶V()∶V()=38∶2∶0.2∶0.5。(3)B。BA,TiO2。(4)(),TiO2,,,500℃。1.3(SEM)FEI/Sirion200。1.4,,。,,,24h-。,1d。-,540nm。540nm,(10mg/L,1)。24h10mg/L,540nm,(1)。=P0-P1P0×100%(1):P0———540nm;P1———540nm。22.1(SEM)2、3。2,TiO2,~nm,。2.22.2.1,pH1.81.61.41.21.00.80.60.40.2024681012/(mg·L-1)1-2y=0.1593xR2=0.999851——2009-05,29(5)3(25mg/L,24h),100mL,4。4,,,,,,,,,,,30g/L。2.2.2,pH(30g/L),,100mL,5。5,,。,,。,10mg/L。,30g/L、10mg/L,5d83.61%。2.2.3TiO2pH、30g/L、25mg/L(24h)、,TiO2100mL,6。6,TiO2TiO2,,,。2。5d、、。,5d185.2%,2383.6%82.3%,,TiO2,。3(1)-TiO2,,。(2)TiO2,,。(3)3TiO2,。[][1]BardAJ.Photoelectrochemistry[J].Science,1980,207(4427):139-144.[2]RosenbergI,BrockJR,HellerA.Collectionopticsoftitaniumdioxidephotocatalystonhollowglassmicrobeadsfloatingonoilslicks[J].J.Phys.Chem.,1992,96(8):3423-3428.10080604020012345678910/d/%0.5g1.0g2.0g3.0g4.0g5.0g410080604020012345/d/%5mg/L10mg/L15mg/L20mg/L25mg/L580604020012345/d/%6TiO252——[3]MatthewsRM.Anadsorptionwaterpurifierwithinsituphotocatalyticregeneration[J].J.Catal.,1988,113(2):549-555.[4]SerponeN,BorgarelloE,HarrisR,etal.PhotocatalysisoverTiO2supportedonaglasssubstrate[J].SolarEnergyMaterials,1986,14(1):121-127.[5]PeilNJ,HoffmannMR.ChemicalandphysicalcharacterizationofaTiO2coatedfiberopticalcablereactor[J].Environ.Sci.Technol.,1996,30(9):2806-2812.[6],.[J].,1999,11(1):1-10.[7],,,.Fe2O3TiO2[J].,2006,26(12):44-47.[8],,.TiO2[J].,2006,7(6):10-12.[9],,,.Fe3+Zn2+[J].,2007,36(13):17-20.[10]JoohoMoon,TakagiH,FujishiroY,etal.PreparationandcharacterizationoftheSb-dopedTiO2photocatalysts[J].JournalofMaterialsScience,2001(36):949-955.[11],,,.TiO2[J].:,2000,30(5):395-399.[12],,,.TiO2[J].,2006,27(3):26-30.[13]LinaceroR,Aguado-SerranoJ,Rojas-CervantesML.PreparationofmesoporousTiO2bythesol-gelmethodassistedbysurfactants[J].JournalofMaterialsScience,2006,41(8):2457-2464.[](1983—),。:15955120400,E-mail:qishuai@mail.ustc.edu.cn。[]2009-01-25()StudyontheapplicationofferroussulfateandcalciumcarbonatetothepurificationofcokingwastewaterYuKai,LüYongkang,RenLei(TaiyuanUniversityofScience&Technology,Taiyuan030024,China)FeSO4CaCO3,,(,030024)[]。,FeSO4CaCO3,COD、NH3-N。,1L1gFeSO40.2gCaCO3COD、NH3-N,COD、NH3-N79.8%、69.8%80%~90%。,,。[];FeSO4;CaCO3;[]X703.1[]A[]1005-829X(2009)05-0053-04Abstract:Cokingwastewatercontaininghighlyconcentratedorganicpollutantsistypicallydifficulttobedegraded.Inordertotreatcokingwastewatereffectively,bymeansofaddingferroussulfateandcalciumcarbonateproperly,certainamountofCOD,NH3-Nandchromacanberemoved.Theresultsindicatethatadding1gofferroussulfateand0.2gofcalciumcarbonateto1LwastewatercanmaketheremovalratesofCOD,NH3-Nandchromameettherequirementsofthetreatmentstandardtoacertainextent.TheremovalratesofCOD,NH3-Nandchromaare79.8%,69.8%and80%-90%respectively.Afterthetreatment,thewaterqualityissteady,andthebiodegradabilityisimproved,creatingconditionsforthesequentbiochemicaltreatment.Keywords:cokingwastewater;ferroussulfate;calciumcarbonate;absorbency[](052035)1,,,。、!!!!!!!!!!
本文标题:掺铜TiO2薄膜光催化降解碱性品红的研究齐帅
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