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Ag纳米粒子掺杂TiO_2的制备及其光催化性能研究.docx

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Ag纳米粒子掺杂TiO_2的制备及其光催化性能研究 Title:PreparationandPhotocatalyticPerformanceStudyofAgNanoparticle-dopedTiO2 Abstract: Inrecentyears,theutilizationofphotocatalysisforenvironmentalremediationhasgainedconsiderableattention.Amongvariousphotocatalysts,titaniumdioxide(TiO2)hasemergedasapromisingcandidateduetoitsexcellentstabilityandefficientphotocatalyticactivity.However,thelowquantumefficiencyandwidebandgaprestrictthephotocatalyticapplicationsofTiO2.Toenhancethephotocatalyticperformance,dopingTiO2withmetalnanoparticlessuchassilver(Ag)hasbeenextensivelyexplored.ThisstudyaimstoinvestigatethepreparationmethodandthephotocatalyticperformanceofAgnanoparticle-dopedTiO2. 1.Introduction: TheintroductionwillprovideabriefoverviewoftheimportanceofphotocatalysisinenvironmentalremediationandthelimitationsofTiO2.ThesignificanceofdopingTiO2withAgnanoparticleswillbediscussed,highlightingthepotentialtoenhanceitsphotocatalyticproperties. 2.ExperimentalMethods: ThissectionwilldescribetheexperimentalproceduresusedforthesynthesisofAgnanoparticle-dopedTiO2.Itwillincludedetailsaboutthestartingmaterials,equipmentused,andthepreparationtechniques.Thecharacterizationtechniquesemployed,suchasX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),andUV-visiblespectroscopy,willalsobementioned. 3.ResultsandDiscussion: Theresultsobtainedfromthecharacterizationtechniqueswillbepresentedanddiscussedinthissection.XRDanalysiswillprovideinformationonthecrystalstructureandphasecompositionofthesynthesizedsamples.SEMandTEMimageswillrevealthesize,morphology,anddispersionofAgnanoparticlesontheTiO2surface.TheUV-visiblespectroscopyresultswilldemonstratetheabsorptionandbandgapchangesinducedbytheAgnanoparticles.ThephotocatalyticactivityofAgnanoparticle-dopedTiO2willbeevaluatedbystudyingthedegradationofamodelorganicpollutantunderUVirradiation. 4.MechanismofEnhancedPhotocatalyticPerformance: ThissectionwilldiscussthepossiblemechanismsresponsiblefortheimprovedphotocatalyticperformanceofAgnan