銅摻雜二氧化鈦薄膜負(fù)載顆粒光催化降解模擬染料的研究.pdf

1、中國(guó)科學(xué)技術(shù)大學(xué)碩士學(xué)位論文銅摻雜二氧化鈦薄膜負(fù)載顆粒光催化降解模擬染料的研究姓名：齊帥申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：環(huán)境工程指導(dǎo)教師：劉義新20090501AbstractABSTRACTInrecentyears，agreatdealofefforthadbeendevotedtodevelopingheterogeneoussemiconductorphotocatalysts嘶tllhighphotocatalyticactivity

2、fortheir塒deenvironmentalapplicationssuchasairpurication，waterdisinfection，hazardouswasteremediationandwaterpuricationAmongvariousoxidesemiconductorphotocatalysts，titaniumdioxidehadbeenprovedtobeoneofthebestphotocatalysts

3、duetOitshighoxidativeabilitycost—effectiveness，physicalandchemicalinertnessforwidespreadenvironmentalapplicationsHowevertherestillremainedsomeproblemsinpracticalapplications，suchasthepreparationofphotocatalystwithhi曲phot

4、ocatalyticactivitythelightutilizationratioThephotocatalyticactivityoftitaniamustbefurtherenhancedfromthepointofpracticaluseandcommerceInthepresentwork，aimingattheexistingproblems，wetriedtoimproveonthemetalioncopingandcha

5、ngecarriersSOastopreparedifferentphotocatalystsWealsostudythesurfacecharacteristicofcatalyzersWeemphaticallystudiedthephotocatalyticactivityoftitaniaofphotocatalyticsindifferentconditionsinthesun’SraysThemainresultsofthe

6、presentworkwereasfollows：TheevenlycommonCudopingTi02thinfilmsdepositedoncarriersilicagelwerepreparedbySol—gelprocessingTheconditionsofloadingofTi02nanoparticlesoncarrierwereobservedonscanningelectronmicroscope(SEM)Theres

7、ultsshowedthatTi02nanoparticleswerehomogenizedoncarrierThepagestudiedtheeffectofphotocatalyticdegradationofalkalifuchsinonTi02thinfilmsbyinitialalkalifuchsinconcentrationandcatalystloadingonconditionofsunlightTheefficien

8、cyofphotocatalyticdegradationWascomparedbetweenCu—dopingTi02andTi02catalystTheresultsshowedthattheefficiencyofphotocatalyticdegradationwereincreasingwitlltheincreaseofcatalystloading，butwhencatalystloadingreachedacertain

9、amounttheefficiencyofphotocatalyticdegradationincreasingfewerTheefficiencyofphotocatalyticdegradationwasreducing、撕吐ltheincreaseofinitialalkalifuchsinconcentrationConsideringeconomicalefficiencyandefficiencyofphotocatalyt

10、icdegradation，wechosethecatalystloadingof309／100mLandinitialalkalifuchsinconcentrationof10mg／L，therateofphotocatalyticdegradationhavingreachedtO8361％AndphotocatalyticofCu—dopingZi02weremoreactivethanthatofZi02catalystThe