鋁基柱撐蒙脫石的制備與表征.pdf

1、中南大學(xué)碩士學(xué)位論文鋁基柱撐蒙脫石的制備與表征姓名：李恒峰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：劉曉文20070501碩士學(xué)位論文ABSTRACTAlpillaredmontmorillonitesiSanewcatalyticmaterialwithlargesurfaceareahighthermalstabilityandsurfaceactivityInthiswork，montmorilloniteorefromXinyan

2、g，Henanprovicewasbeenpurifiedandsodiummodified，A113pillaredmontmorilloniteandA124pillaredmontmorillonitewaspreparedandcharacterizedMontmorillonitehasbeenbeneficiatedbysedimentationseparationprocesswithsodiumhexametaphosp

3、hateasdispersant，producinganultrapuremontmorillonite，whichthecontentofmontmorillonitewas9389％ThensodiumpercarbonatewaschoseasmodificationagenttoproduceNamontmorilloniteA1C13solutionWashydrolysedbyNaOHtogainAllspillaringa

4、gentAll3pillaredmontmoriUoniteWaspreparedbyNamontnorilloniteasstromaandAll3aspillaringagentThespacingdistanced(∞1)valueofNa—montmorinollitewas12726nnl，butthatofAllspillaredmontmorilloniteWas1894811111AfterAllspillaredmon

5、tmorillonitebeingcalcinedat500“C，itsproductWasquitstable，whichthebasalinterlayerspacingd(ooDwasstabilizedat18036nl／1越24pillaredmontmorilloniteWaspreparedusingA124pillaringagentwhichWasgainedbyamethodofaddingaluminumfoili

6、ntotheA1CIssolutionTheformationconditionsandpropertiesofpillaredinterlayermontmorilloniteweredeterminedTheexperimentalresultsshowedthatagingtime55hunder975℃，thesuspendingliquidconcentrationofNamontmorillonitel％。Al／montmo

7、rillonite10mmol／gandpillaredreactiontime48hA124pillaredmontmorillonitewithalargebasalspacing，d(001)=20533nnl，hasbeenproducedAfter砧24pillaredmont—morillonitebeingcalcinedat700。C，itsproductWasquitstable，whichthebasalinterl

8、ayerspacingd(001)wasstabilizedat17873哪TheIRresultsofmontmorillonitebeingcalcinedatdifferenttemperaturesshowedthattheIRspectraofA124pillaredmontmorillonitewerealmostagreedwithNamontmorilloniteThestructureofoctahedronsheet