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1、AppliedCatalysisA:General413–414(2012)238–244ContentslistsavailableatSciVerseScienceDirectAppliedCatalysisA:Generaljournalhomepage:www.elsevier.com/locate/apcataHydrothermalsynthesisandphotocatalyticperformanceofmetal-ionsdopedTiO2Huajun∗Feng,Min-HongZhang,
2、LiyaE.YuDepartmentofCivilandEnvironmentalEngineering,NationalUniversityofSingapore,1EngineeringDrive2,Singapore117576,SingaporearticleinfoabstractArticlehistory:Metal-ionsdopedTiO2(M-TiO2)weresynthesizedusingahydrothermalmethodwithapost-annealing22August201
3、1+2+2+3+3+4+Receivedprocess,includingindividualAg,Cu,Mn,Ce,FeandZrions.Physicalpropertiesofthesynthe-Receivedinrevisedform9November2011sized11M-TiO2werecharacterizedincludingXRDpattern,BETsurfacearea,diffusereflectancespectraandNovember2011Acceptedvisible-li
4、ghtAvailableonline22November2011photoactivitytests.TotalphotocatalyticperformancesofM-TiO2wereevaluatedbydegrad-ingrhodaminebunderwholesolar-lightirradiationwithmanganese-ionsdopedTiO2(Mn-TiO2)showingtheKeywords:highestdegradationefficiency.Comparedtocrystal
5、linestructureandvisible-lightphotoactivity,BETsurfaceareaofM-TiO2particlesexhibitsthemostsignificantimpacts,showingapositivecorrelationwithMetal-ionsdopedTiO2thePhotocatalytictotalphotocatalyticperformanceofM-TiO2.TotalphotocatalyticefficienciesofMn-TiO2weref
6、urtherperformanceoptimized◦irradiationthroughsynthesiswith3%ofMndopingconcentration,180CofhydrothermaltreatmentandSolar-light◦450Cofpost-annealingtemperature.Hydrothermalsynthesis©2011ElsevierB.V.Allrightsreserved.1.IntroductionThereisaconsiderablecontrover
7、syontheeffectofdopingmetal-ionsonphotocatalyticperformance.SomepapersreportedTitania(TiO2)hasbeenextensivelystudiedasaphotocata-that6+5+3+2+lystthedopingofmetal-ionssuchasW,V,FeandCuinforthedegradationofenvironmentalpollutantsduringtheTiOincreasedlast2there
8、sultantphotocatalyticperformance[16,17]decadesbecauseofitssuperiorphotocatalyticperformance,whereasnon-toxicity,Nagavenietal.demonstratedthatTiO2dopingwiththeselowproductioncostandhighpersistencetophot
