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1、NanoEnergy(2015)12,646–656Availableonlineatwww.sciencedirect.comjournalhomepage:www.elsevier.com/locate/nanoenergyRAPIDCOMMUNICATIONCarbonnitridewithsimultaneousporousnetworkandO-dopingforefficientsolar-energy-drivenhydrogenevolutiona,ba,ba,baZhen-FengHuang,JiajiaSong,LunPan,ZimingWang,aa,b,ncXueqi
2、angZhang,Ji-JunZou,WenboMi,a,b,na,bXiangwenZhang,LiWangaKeyLaboratoryforGreenChemicalTechnologyoftheMinistryofEducation,SchoolofChemicalEngineeringandTechnology,TianjinUniversity,Tianjin300072,ChinabCollaborativeInnovativeCenterofChemicalScienceandEngineering(Tianjin),Tianjin300072,ChinacTianjinKe
3、yLaboratoryofLowDimensionalMaterialsPhysicsandPreparationTechnology,FacultyofScience,TianjinUniversity,Tianjin300072,ChinaReceived12November2014;receivedinrevisedform21January2015;accepted26January2015Availableonline4February2015KEYWORDSAbstractPhotocatalysis;Efficientchargeseparationandbroadenligh
4、tabsorptionareofcrucialimportanceforsolar-Carbonnitride;drivenhydrogenevolutionreaction(HER),andgraphiticcarbonnitride(g-C3N4)isaveryPorousnetwork;promisingphotocatalystforthisreaction.Herewereportafacileprecursorpre-treatmentO-doping;method,byforminghydrogenbond-inducedsupramolecularaggregates,to
5、fabricateg-C3N4HydrogenevolutionwithsimultaneousnovelporousnetworkandcontrollableO-doping.ExperimentalandDFTcomputationidentifiedthatOdopingpreferentiallyoccursontwo-coordinatedNposition,andtheporousnetworkandO-dopingsynergeticallypromotethelightharvestingandchargeseparation.Asaresult,thismaterials
6、hows6.1and3.1timeshigherHERactivity(withapparentquantumefficiencyof7.8%at420nm)thanbulkandeven3Dporousg-C3N4.Thisworkhighlightsthatsimplypre-treatingtheprecursorcannotonlycontrolthearchitecturebutalsointroducehelpfulforeignatomsormonomerinthematrix,whichprovidesausefulstrategytodesignandfabricatehi
7、ghlyefficientg-C3N4photocatalyst.&2015ElsevierLtd.Allrightsreserved.nCorrespondingauthors.E-mailaddresses:jj_zou@tju.edu.cn(J.-J.Zou),zhangxiangwen@tju.edu.cn(X.Zhang).http://dx.doi.org/10.1016/j.nanoen.2015.01.04
