非贵金属助催化剂MXene在光催化领域应用的研究进展（英文）-豆柴文库

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非贵金属助催化剂MXene在光催化领域应用的研究进展（英文）
ResearchProgressontheApplicationofNon-NobleMetalCatalystMXeneinPhotocatalysis
Introduction:
Inrecentyears,thedevelopmentofefficientandcost-effectivecatalystsforphotocatalyticapplicationshasgainedsignificantattention.Non-noblemetalcatalysts,whichcanreplaceexpensiveandscarcenoblemetals,haveshowngreatpotentialinvariousfieldsincludingenergyconversionandenvironmentalremediation.MXene,anewtypeof2Dmaterial,hasemergedasapromisingcatalystcandidateduetoitsuniquestructureandexcellentproperties.Thispaperaimstoprovideanoverviewoftheresearchprogressontheapplicationofnon-noblemetalcatalystMXeneinphotocatalysis.
1.MXeneStructureandSynthesis:
MXenesare2Dtransitionmetalcarbides,nitrides,orcarbonitrides,derivedfromacorrespondingMAXphasebyselectiveetchingoftheAelement(typicallyaluminum)throughchemicalorelectrochemicalmethods.TheresultingMXeneexhibitsalayeredstructurewithmetallicconductivity.ThesynthesisofMXeneinvolvesthedelaminationandexfoliationofMAXphases,followedbysurfaceterminationwithvariousfunctionalgroupstoobtaindesiredproperties.
2.MXeneasaPhotocatalyst:
TheuniquephysicochemicalpropertiesofMXenemakeitanexcellentcandidateforphotocatalyticapplications.Firstly,thetransitionmetallayersinMXeneprovideabundantactivesitesforcatalyticreactions.Secondly,thehighelectricalconductivityofMXenefacilitatesefficientchargetransferandseparation,leadingtoenhancedphotocatalyticperformance.Lastly,thetunablesurfacechemistryofMXeneallowsfortheintroductionofspecificfunctionalgroupstoenhancephotocatalyticactivity.
3.MXene-BasedPhotocatalyticApplications:
3.1WaterSplitting:MXenehasbeenwidelyinvestigatedasacocatalystforwatersplitting,whichisakeyprocessinsolarfuelproduction.MXene-basedphotocatalystscaneffectivelypromotethehydrogenevolutionreaction(HER)oroxygenevolutionreaction(OER)duetotheirexcellentelectricalconductivityandabundantactivesites.Inaddition,surfacemodificationsofMXenewithcertainfunctionalgroupshavebeenproventoenhancethecatalyticactivityforwatersplitting.
3.2Poll