Ce基催化剂催化氧化挥发性有机物(VOCs)研究进展-豆柴文库

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Ce基催化剂催化氧化挥发性有机物(VOCs)研究进展
Title:ResearchProgressonCe-BasedCatalystsfortheCatalyticOxidationofVolatileOrganicCompounds(VOCs)
Abstract:
Thecatalyticoxidationofvolatileorganiccompounds(VOCs)isaneffectivetechniquefortheremovaloftheseharmfulpollutantsfromvariousemissionsources.Ce-basedcatalystshaveemergedaspromisingmaterialsduetotheiruniquephysicochemicalpropertiesandhighcatalyticactivity.Inthispaper,wereviewtherecentresearchprogressonCe-basedcatalystsforthecatalyticoxidationofVOCs.Wediscussthesynthesismethods,structuralcharacteristics,andcatalyticperformanceofCe-basedcatalysts.Additionally,wehighlighttheinfluencingfactorsandmechanismsinthecatalyticoxidationprocess.Finally,wesummarizethechallengesandfutureprospectsinthisresearcharea.
1.Introduction:
Theemissionofvolatileorganiccompounds(VOCs)fromindustrialprocesses,vehicleexhaust,andhouseholdactivitieshasbecomeamajorenvironmentalconcernduetotheirharmfuleffectsonhumanhealthandtheenvironment.ThecatalyticoxidationofVOCshasgainedsignificantattentionasanefficientapproachtomitigateVOCpollution.Ce-basedcatalysts,basedonceriumoxidesormixedoxides,havedemonstratedexceptionalcatalyticactivityandstabilityinVOCoxidation,makingthemidealcandidatesforthisapplication.
2.SynthesisMethodsofCe-basedCatalysts:
ThissectiondiscussesvarioussynthesismethodsemployedforthepreparationofCe-basedcatalysts,includingco-precipitation,sol-gel,impregnation,andhydrothermalmethods.Theinfluenceofsynthesisparameters,suchasprecursorconcentration,pH,andcalcinationtemperature,onthephysicochemicalpropertiesofthecatalystsisalsodiscussed.
3.StructuralCharacteristicsofCe-basedCatalysts:
ThestructuralcharacteristicsofCe-basedcatalystsgreatlyinfluencetheircatalyticperformance.Weexplorethecrystalstructure,surfacemorphology,andcompositionofthesecatalystsusingtechniquessuchasX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),andX-rayphotoelectronspectroscopy(XPS).
4.CatalyticPerformanceofCe-basedCatalysts:
Thissectionsummarizesthec