沸石基稀土-納米TiO-,2-復(fù)合基元材料的制備及其應(yīng)用研究.pdf

1、西南科技大學(xué)碩士學(xué)位論文沸石基稀土納米TiO復(fù)合基元材料的制備及其應(yīng)用研究姓名：蒲思川申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：環(huán)境工程指導(dǎo)教師：馮啟明20090412西南科技大學(xué)碩士研究生學(xué)位論文第1I頁AbstractThepapersummarizedthedevelopingstatusquoofhallo—Ti02，rare—earthdopednanoTi02andmineral—based／nanoTi02compoundedphotoca

2、talyticmaterialsItintroducedtheapplicationofthosephotoeatalytiematerialsinenvironmentalpurification(suchasantibacterium，thetreatmentoforganicwastewaterairpurificationandSOon)indetailAnditreviewedthedevelopmenthistoryofph

3、otocatalyticmaterialsbrieflyThisresearchstudiedthetechnologicalconditionsofpreparingpurenano—Ti02andrareearthiondopednano—Ti02withsol—gelmethodAtroomtemperature，theproductsweresynthesizedusingtetrabutyltitanateastheforme

4、rbodyanhydrousethanolasthesolvent，glacialaceticacidastheinhibitor，andconcentratednitricacidasthecatalystThemolarratioofTi(OC4H9)4“C2H50H：H20was1：12：9La”andCe”wereusedasdopedionsXRDandSEManalysisoftheproductsshowedthat，mo

5、stoftheproductswereanataseTi02，andmostgranularityweremainly50“70nmTheproductswereusedindegradationoforganicmatters(methylorange，methyleneblue)andactedasantimicrobialagent(Ecoli，staphylococcusaureus)Theresearchshowedthatd

6、opingamountandheattreatmenttemperaturewerethemainfactorsthataffectedtheirphotocatalyticactivityBymeansofanalysisandoptimalcombination，thebestconditionsofpreparationwereconcludedThebestdopingamountofLa—Ti02was2％La3doped，w

7、hilethebestheattreatmenttemperaturewas450“CThebestconditionofpreparingCe—Ti02was1％Ce3dopedandheattreatmenttemperaturewas650℃Theresearchaboutthepreparationofzeolite—basedrareearthiondopednano—Ti02compositeprimitivemateria

8、lswhichusedsynchronouscompositetechnologyshowedthat，thedegradationrateandantimicrobialeffectincreasedaszeoliteloadingincreasedWhenthezeoliteloadingis40wt％，itsdealingeffectwasbetterthanthesameamountofrare—earthiondopednan