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磁性金属--有机骨架催化剂的合成、结构表征和催化性能研究.docx

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磁性金属--有机骨架催化剂的合成、结构表征和催化性能研究 Abstract Magneticmetal-organicframework(MOF)catalystshavereceivedextensiveinterestduetotheirhighsurfacearea,tunableporesize,andmagneticproperties.Inthispaper,wesynthesizedamagneticMOFcatalyst,Fe-MIL-101,andcharacterizeditsstructurebyvarioustechniques,includingX-raydiffraction,transmissionelectronmicroscopy,andFourier-transforminfraredspectroscopy.ThecatalyticperformanceofFe-MIL-101wasevaluatedintheoxidationreactionofbenzylalcoholtobenzaldehyde.ResultsshowedthatFe-MIL-101exhibitedexcellentcatalyticperformancewithhighconversionandselectivity.ThesefindingsindicatethatmagneticMOFcatalystshavegreatpotentialinvariouscatalyticreactions. Introduction Metal-organicframework(MOF)materialshaveattractedattentionduetotheirhighsurfacearea,tunableporesize,andrichchemicalfunctionality.MOFsarecomposedofmetalionsorclusterscoordinatedbyorganicligands,creatingaporousnetworkstructure.MOFshavebeenusedinvariousfields,includinggasstorage,separation,andcatalysis.Inrecentyears,magneticMOFmaterialshavereceivedextensiveinterestduetotheiruniqueproperties,suchassuperparamagnetismandhighmagneticmoment. MagneticMOFshavepotentialapplicationsincatalysisduetotheirhighsurfaceareaandmagneticproperties,whichprovideenhancedadsorptionandseparationproperties.Inaddition,magneticMOFscanbeeasilyseparatedfromthereactionmixtureusingamagneticfield,makingthemadvantageouscomparedtotraditionalcatalyticmaterials. Inthisstudy,wesynthesizedamagneticMOFcatalyst,Fe-MIL-101,andevaluateditscatalyticperformanceintheoxidationreactionofbenzylalcoholtobenzaldehyde.Thesynthesis,structuralcharacterization,andcatalyticperformanceofFe-MIL-101aredescribedindetailbelow. Experimental Chemicals Allchemicalswerepurchasedfromcommercialsuppliersandusedwithoutfurtherpurification.Benzylalcohol(97%),benzaldehyde(99%),andaceticacid(99.5%)werepurchasedfromJ&KScientificLtd.Iron(III)nitratenonahydrate(Fe(NO3)3·9H2O)andtrimesicacid(1,3,5-benzenetricarboxylicacid,H3BTC)werepurchasedfromAladdinChemicals. SynthesisofFe