（氧）氮化物的制备及其光电化学水分解性能的研究

（氧）氮化物的制备及其光电化学水分解性能的研究Title: Preparation and Photocatalytic Water Splitting Performance of (Oxy)nit

（氧）氮化物的制备及其光电化学水分解性能的研究 Title:PreparationandPhotocatalyticWaterSplitting Performanceof(Oxy)nitrides Abstract: (Oxy)nitrideshaveattractedsignificantattentionaspromising materialsforphotocatalyticwatersplittingduetotheirunique properties,suchashighstability,visiblelightabsorption,and efficientchargeseparation.Inthispaper,weexplorethe preparationmethodsof(oxy)nitridesandtheirphotocatalytic performanceforwatersplitting.Thesynthesisroutes,including conventionalsolid-statereactions,sol-gelmethods,and hydrothermalmethods,arediscussed,highlightingtheir advantagesanddisadvantages.Additionally,various characterizationtechniquesusedtostudythephysicochemical propertiesof(oxy)nitridesarereviewed.Furthermore,the mechanismsunderlyingthephotocatalyticactivityof(oxy)nitrides forwatersplittingareelucidatedbasedonthebandstructures andsurfaceproperties.Finally,therecentadvancementsand futureprospectsintheutilizationof(oxy)nitridesforefficient watersplittingarepresented. 1.Introduction 1.1Background 1.2Significanceandobjective 2.Synthesisof(Oxy)nitrides 2.1Conventionalsolid-statereactions 2.2Sol-gelmethods 2.3Hydrothermalmethods 3.Characterizationof(Oxy)nitrides 3.1X-raydiffraction(XRD) 3.2Scanningelectronmicroscopy(SEM) 3.3Transmissionelectronmicroscopy(TEM) 3.4X-rayphotoelectronspectroscopy(XPS)