2.652sdarticle[1]facile template-free synthesis of meso-macroporous titanium

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1、MicroporousandMesoporousMaterials100(2007)139–145www.elsevier.com/locate/micromesoFaciletemplate-freesynthesisofmeso-macroporoustitaniumphosphatewithhierarchicalporestructureHailongFei,XiaoquanZhou,HuijingZhou,ZhuruiShen,PingchuanSun,ZhongyongYuan,TiehongChen

2、*CollegeofChemistry,DepartmentofMaterialsChemistry,KeyLaboratoryofFunctionalPolymerMaterialsofMOE,NankaiUniversity,Tianjin300071,ChinaReceived17November2005;receivedinrevisedform12October2006;accepted12October2006Availableonline30November2006AbstractMeso-macr

3、oporoustitaniumphosphatematerialswithhierarchicalstructurehavebeensynthesizedthroughafacileandtemplate-freemethodusingtitaniumn-butoxide(TBT)astitaniumsource.Boththeas-synthesizedtitaniumphosphateandthesampleaftercalcinationat500°Careamorphous,asprovedbytheXR

4、Dmeasurements.Theco-existenceofmesoporesandmacroporesisidentifiedbyN2adsorption–desorptionmeasurements,SEMandTEMmethods.TheformationofTi–O–Pbondsduringthesynthesisprocesswassup-31portedbyFT-IRspectroscopy,andwasfurtherverifiedbyPMASNMRspectraandXPSmeasurements.

5、TheBETsurfaceareaoftheproductscanbeadjustedbyadditionofn-butanol.Ó2006ElsevierInc.Allrightsreserved.Keywords:Hierarchical;Titaniumphosphate;Mesoporous;Macroporous;Synthesis1.Introductiontitaniumphosphatemixedwithporoustitaniapossesseshighelectricalconductivit

6、y[7].TherehavebeenstudiesSincethediscoveryofM41Sfamilyofmesoporoussilicaonthesynthesisofnovelorganicallytemplatedmixed-[1],muchattentionhasbeenpaidtomesoporousmaterials,valence[8]and2-Dlayeredtitaniumphosphates[9].whichhavepotentialapplicationstoseparation,ca

7、talysisOrderedporoustitaniumphosphatewithrelativelyhighandadsorptionduetotheirhighsurfaceareas,porevol-surfacearea(and/orhighsurface-to-volumeratio)andumesandcontrollableporesizes.Amongthose,titanium-controlledcrystallineframeworkisofgreatsignificancebasedmate

8、rialsareextensivelystudiedbecauseoftheirforpracticalapplications.HexagonallypackedtitaniumUV–visiblephotocatalyticandphotovoltaicproperties.oxo-phosphatewithsupermicropores(poresizebetwee