直接噴涂改性硅溶膠固載二氧化鈦的研究

1、碩士學(xué)位論文碩士學(xué)位論文直接噴涂改性硅溶膠固載二氧化鈦的研究THESYUDYOFIMMOBILIZINGTITANIUMDIOXIDEBYDIRECTSPRAYMODIFIEDSILICASOLCidate：TanJianSupervis：AssociateProf.ZhuRongshuAcademicDegreeAppliedf：MasterDegreeinEngineeringSpeciality：EnvironmentalScie

2、nceEngineeringAffiliation：ShenzhenGraduateSchoolDateofDefence：December2016DegreeConferringInstitution：HarbinInstituteofTechnology萬方數(shù)據(jù)哈爾濱工業(yè)大學(xué)工學(xué)碩士學(xué)位論文IIAbstractTitaniumdioxideiscurrentlyusedasphotocatalyticwidelywhichiscom

3、monlypowderitiseasytolossdifficulttorecycle.Therefeimmobilizationoftitaniumdioxideisanimptantprerequisiteftheindustrialapplication.Thissubjectadoptedthemethodofbindertoimmobilizetitaniumdioxideoptimizedthepreparationmeth

4、odofthecatalysttoinvestigatetheeffectsofthedegradationofcatalystftoluene.TheimmobilizationofTiO2bysilicasolwasstudied.Differentpreparationmethodswereedthecatalystimmobilizedbysilicasolshowedthebestresults.Tooptimizeprepa

5、rationconditionsthequalityratioofsilicasolTiO2thetypeofdispersanttheratioofthedispersingagentwereinvestigated.Theresultshowedthat，whenthequalityoftitaniumdioxidewas4:3themassofsodiumhexametaphosphatewas2%thecatalystshowe

6、dthebestphotocatalyticeffectthedegradationrateof3hwas96%themineralizationratewas87%.TheimmobilizationofTiO2bysilicasoltomodifysurfacewasstudied.ThemodificationofthesurfacecrackbySiliconeacrylicemulsionfluocarbonemulsiona

7、luminumsolsilanecouplingagentKH570wasstudied.Thesilanecouplingagentmodifiedcatalystsshowedthebestcatalyticeffect.WhentheratioofKH570tocarbondioxidewas3:10pHwas2thephotocatalyticactivityofthecatalystwasthebestthedegradati

8、onrateoftoluenewas94%.Thedegradationoftolueneunderflowingconditionswasinvestigatedbyusingthecatalyst.Theinfluenceofsimulationconditionsonthedegradationoftoluenewasinvestigated.Itwasfoundthattheresidencetimeofthepollutant

9、sinthereacthadthegreatestinfluenceonthedegradationoftoluene.Withtheresidenceincreasingcatalysthadthebettereffectonthedegradationoftoluene.Withtheincreaseofhuitythedegradationrateoftolueneincreasedfirstdecreasedthen.Witht

10、heincreaseoftheinitialdegreeofcatalystthedegradationrateoftoluenedecreased.Whentheinitialconcentrationoftoluenewas10ppmresidencetimewas60srelativehuitywas45%thedegradationrateoftoluenewas91.5%themineralizationratewas71%。