ZnO纳米柱状阵列表面AgX等离子基元修饰及其可见光光催化活性-论文.pdf

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1、ChineseJournalofCatalysis35(2014)1113—1125催化学报2014年第35卷第7期Jwww．chxb．cnaVailabteatwww．scienCedirect．c0mSdenceDirectjournalhomelpage：www。e1seviercom／locate／chnjcArticlePlasmonicAgXnanOparticles-modifiedZnOnanorodarraysandtheirvisible--light·-drivenphotocataly

2、ticactivityJiaLu，HuihuWang，b，，YifanDong，FanqiangWang，ShijieDong，bSchoolofMechanicalEngineering,HubeiUniversityofTechnology,Wuhan43006~HubeLChinaHubeiProvincialKeyLaboratoryofGreenMaterialsforLightIndustry,HubeiUniversi纱ofTechnology,Wuhan43006~Hubei,ChinaART

3、ICLEINF0ABSTRACTArticlehistory．AgXfX=lBr)nanoparticles‘sur&cemodifiedZnOnanorodarrays(AgX／ZnO)werepreparedusingReceived28December2013animpregnationmethod．Theinfluenceofimpregnatingsolutionconcentration，immersiontime，Accepted10February2014andUVlightilluminat

4、ionpretreatmentonthevisiblelight-drivenphotocatalyticactivityofPublished20July2014AgX／ZnOwasevaluated．Themorphology,phasecomposition，bandgap，andsur~cecharacteristicsoftheAgX／ZnOnanorodarrayswereassessedbyfield-emissionscanningelectronmicroscopy，X—raydiffrac

5、tion，diffusereflectanceUV—Visabsorptionspectroscopy,andX-rayphotoelectronspec-Keywords：troscopy．TheAgBrnanoparticleswerehomogeneouslydistributedonthetopandsidesurfacesofSilverbromidetheZnOnanorods，andconnectedtoformaporousnetworkstructure．FollowingUVlightil

6、lumina—Zincoxidetionpretreatment，AgnanoparticleswereformedonthesurfaceoftheAgBrnanoparticlesproduc-ImpregnationmethodVisiblelight—drivenphotocatalyticingaAg／AgBr／ZnOnanostructure．Methylorangephotodegradationstudyshowedthatthephoto-activitycatalyticactivityo

7、fAgBr／ZnOwashigherthanthatofAgI／ZnO，synthesizedundersimilarcondi-tions，andwashighlyrelatedtotheimpregnatingsolutionconcentrationandimmersiontime．Ow—MethylorangeingtothehighsurfaceareaoftheZnOnanorodarrays，thevisiblelightsensitivityofAgBr,andsupfaceplasmonre

8、sonanceofAg／AgBr,Ag／AgBr／ZnOexhibitedthehJighestvisiblelight-drivenphoto-catalyticactivity．@2014DalianInstituteofChemicalPhysics，ChineseAcademyofSciences．PublishedbyElsevierB．V．Allrightsreserved．1．Intr