納米TiO-,2-的制備和摻雜及其在異構(gòu)化反應中的應用.pdf

1、南京工業(yè)大學碩士學位論文納米TiO的制備和摻雜及其在異構(gòu)化反應中的應用姓名：季寶允申請學位級別：碩士專業(yè)：應用化學指導教師：王錦堂王濟奎20040501南京工業(yè)大學碩士學位論文ABSTI己ACTAtpresent，thesizedisUibutionsofTi02powderspreparedbyhydrolyzingisalwayswideTheusesofTi02arealmostfocusontheaspectofprotecti

2、onofenvironmentInthisarticle，westudiedthemethodofpreparingllarrowdistributedTi02anddoptedTi02nanometersizedpowdersandtheirapplicationsintherearrangementreactionEspecially，therearrangementreaction(alsonamedisomerization)o

3、fconvertingstyreneoxidetophenylacetyldehydewereinvestigatedAtfirst，themethodofpreparingnanometerTi02bythehydrolyzingTi(SOa)2wasinvestigatedLowcost，simpletechnologyweretheobviousadvantagesofthepreparationofthenanometerTi0

4、2bythehydrolyzingTi(S04hButinthereportedarticles，theoptimalrateofhydrolysiswasonly213％Intheamelioratedexperiment，weaddethyleneglycolmonomethylletherinTi(S04)2solution，anddropsaturatedNIhHC03solution，therateofhydmlyzingTi

5、(S04)2couldbeimprovedtoalmost100％andthediameterofthepanicleTi02wasreducedForthemore，toenhancethecatalyticactivityofTi02，modificationshavebeenintroducedtothecrystallinematrixbyselectivedopingofoxideBydroppingtheNa2Si03sol

6、utionintheprocessofthepreparationofTi02‘nH20，alsoaddethyleneglycolmonomethylletherthenanometerTi02Si02particleswerepreparedbyjelling，baking，calcineNanometerTi02Sn02havebeenpreparedfromSnCl4‘5H20andWi(S04)2byallactivateds

7、urfacemethodTheoptimalconditionsofthepreparationofcatalystswerestudiedThesize，sizedistribution，appearanceandcompositionofthecatalystswereobservedbyXRD，XPS，TEM，EDS，IRZETASIZERTheresultsshowedthatthesizesofdopantswerereduc

8、ed，andthesizedistributionswerenarrowedThispaperselectedtheismerizationreactionofstyreneoxideascharacterizationofcatalytieperformanceThereactionmechanismwasdescribedinaccordancewiththegeneralreactionmechanismreportedinlit