基于电荷分离及光吸收调控的高可见光活性的g-c3n4基纳米光催化剂的合成

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1、＝＿Ｅ：博士研究生学位论文基于电荷分离及光吸收调控的高可见光活性的ｇ－ＣＮ３４基纳米光催化剂的合成申请人：阿米尔扎达学号：Ｂ１５９５００４培养单位：化学化工与材料学院学科专业：物理化学研究方向：光电化学与光催化指导教师：井立强教授完成日期：２０１８年３月２８日分类号……………………UDC….…………………密级………………………Ph.D.ThesisSynthesisofg-C3N4-BasedNanocompositesasEfficientVisib

2、le-LightPhotocatalystsbyEnhancingChargeSeparationandExtendingOpticalAbsorptionCandidate:AmirZadaStudentID:B1595004Department:SchoolofChemistryandMaterialsScienceMajorSubject:PhysicalChemistryResearchField:PhotoelectrochemistryandPhotocatalysisSupervisor:Prof

3、essorLiqiangJingCompletionDate:28/03/2018AbstractAbstractThegrowingenergycrisesandtheunrestrictedreleaseofobjectionablepollutantstotheenvironmenthavecausedcomprehensiveconcernsinscientificsociety.Photocatalysispresentsitsenvironmentalfriendlyserviceinthisare

4、a.Asapromisinggreentechnology,photocatalysishasreceivedenormousattentionowingtoitsmildnature,highefficiencyandlowcostoperationaltechniques.Undersolarirradiation,photocatalystscanmakeH2OdirectlyconvertintoH2andO2,reduceCO2intosolarfuelsanddegradepollutantsint

5、oH2OandCO2withoutimposinganythreattotheenvironment.Sincethesolarspectrumcontainsnearly46%ofvisiblelight,,itishighlydesiredtodevelopnarrowbandgapphotocatalystsforeffectivesolarenergyutilization.Polymericgraphiticcarbonnitride,g-C3N4(CN)hasbeenextensivelyutili

6、zedforwatersplitting,CO2reductionandpollutantsdegradation.However,highrecombinationrateofphotogeneratedcharges,marginalvisible-lightabsorptionandweaksurfacecatalysisstilllimititspracticalapplicationsinthephotocatalyticconversionprocesses.Therefore,itismuchme

7、aningfultofurtherimproveitsphotocatalyticactivitiestoobtainanefficientphotocatalyst.Herein,wehavecarriedoutaseriesofmodificationstrategiestoimprovechargeseparation,extendtheopticalabsorptiontovisiblelightandimprovesurfacecatalysisofCNforenhancedphotocatalyti

8、cactivitiestoobtainenergyrichcompoundsandsafeenvironmentforfuturegenerations.Themaincontentsareasfollow:1.SynthesisofplasmonicAu-(TiO2/g-C3N4)nanocompositesasefficientvisible-lightphotocatalysts