有機-無機雜化介孔硅基吸附材料的合成及應用研究.pdf

1、大連理工大學博士學位論文有機無機雜化介孔硅基吸附材料的合成及應用研究姓名：李俊寧申請學位級別：博士專業(yè)：化學工藝指導教師：劉長厚齊濤20080601有機一無機雜化介孔硅基吸附材料的合成及應用研究SynthesisandApplicationsofOrganicInorganicHybridMesoporousSilica—basedAdsorptionMaterialsAbstractInrecentyears，organicinorg

2、anichybridmesoporoussilicabasedmaterials謝n111i曲surface‘a(chǎn)rea1argeporevolumeandadjustableporesizehaveattractedmuchattentionacrosstheworld，becausetheyarepromisingincatalyst，adsorption，controlleddilevery，energystorageandconv

3、ersation，chemicalsensors，etcTheresearchonthesynthesisandapplicationofmesoporoussilicabasedfunctionalmaterialsisoneofthefocusesinchemistry，materialsscience，physicsandlifescienceWiththegrowingrequirementfornaturalresources

4、，moreemphasisiSlaidonsustainabledevelopmentandenvironmentalprotectionTherefore，therecoveryandreuseofmetalsinwastewatersiSadvantagoustomakefulluseofmetalresourcesandeliminatepollutionAdsorptiontechniqueiSregardedasaneffec

5、tiveandenvironmentalbenignrouteformetalrecoverySoadsorbentswithexcellentseparationperformancearetheaimofmanyresearchactivitiesTheworkdescribedinthisdissertationiSfocusedonthesynthesisandcharacterizationoforganicinorganic

6、hybridsilicamaterialsandsurfacemodificationoftheorderedmesoporoussilicaTheadsorptionpropertiesofthesynthesizedmaterialsformetalions，especiallyforpreciousmetalionsareinvestigatedPeriodicmesoporousorganosilicas(PMOs)witlld

7、ifferentcontentof14diureylenebenzenefunctionalgroup(O～15％)immobilizedinthesilicafiameworkweresynthesizedunderbothacidandbaseconditions，withE020P070E020(P123)andcetyltrimethylammoniumbromide(CTAB)astemplates，respectivelyI

8、tisfoundthatthePM0spreparedunderacidconditionpossesstwo—dimensionalhexagonalcylindricalmesoporousstructureThehydrogenbondinteractionwasdetectedbetweentheureylenegroupsinthesilicawallandtheinteractionbecomesstrongerwithth

9、eincreasingcontentoftheureylenegroupPM002exhibitsuniform“rodlike”morphorlogyThePM0ssynthesizedinbasicsolutionexhibithighsurfaceareaand“worm—like”hierarchicalmesoporousstructurePMOsdemonstrategoodadsorptionperformanceforA

10、u(III)inacidicsolutionsMoreover，the“worm—like”hierarchicalmesoporousstructuremakemoreorganicgroupsemposetOporesurface，whichiSreadytobeaccessedbyAu(III)Therefore，thePMOssynthesizedunderbasicconditionhavelargeradsorptionca