简介：AsimpleapproachtosynthesizeZnOmicrostructureswasreportedusingdodecylamine,hexadecylamineandoleylamineastemplateagents.ThesynthesizedZnOwascharacterizedbyXRD,FESEM,TEM,EDSmapping,FTIR,UV-visDRS,RamanspectroscopyandBETanalysis.HierarchicalorientedZnOmicrostructureswereobtained.ThephotocatalyticperformanceofZnOpreparedwithdifferenttypesofalkylamineswasevaluatedbythedegradationofmethyleneblue(MB)andmethylorange(MO).Theresultssuggestedthatalkylaminecontrolthenucleation,growthandmorphologyofZnO.ThephotocatalyticpropertiesofZnOonthedegradationofMBandMOdecreasedwithincreasingthealkylchainlengthinalkylamine.

简介：Todealwiththeincreasinglydeterioratingenvironmentproblems,moreandmoreharshrequirementsareputforwardforphotocatalysisapplication.Buildingsemiconductorheterostructureshasbeenproventobeanefficientwaytoenhancephotocatalyticperformance.AkindofCdTe/ZnOheterostructuresweresynthesizedbyahydrothermalandsuccessiveioniclayerabsorptionandreaction(SILAR)methodandachievedobviouslyefficientphotocatalyticperformance.Moreover,aftertheNionirradiationtreatment,thephotocatalyticactivitywasfurtherenhanced,whichcanbeascribedtotheintroductionofoxygenvacancydefects.ThephotocatalyticperformanceenhancementmechanismbycouplingconstructingheterostructuresandIonirradiationarefurtherstudiedtogiveusanoverallunderstandingonZnOnanowires.

简介：

简介：像表的nanoTiO2粒子被使用热水的方法准备，并且被X光检查描绘衍射(XRD)，红外线的光谱学(红外)，和传播电子显微镜学(TEM)。nanoparticle尺寸和crystallinity从150慵楴湯愠摮搠慥瑣癩瑡潩?敢慨楶牯漠?桳敥?楬敫渠湡?楴慴楮a贔?孌随热水的温度的增加增加，这被发现吗？？

简介：

简介：

简介：

简介：

简介：

简介：

简介：

简介：A双层TiO2nanotube数组被Ti陪衬的二拍子的圆舞阳极化在不同电解质形成。首先，在0.5wt%HF的Ti被阳极化形成薄nanotube层。以后，第二阳极化在formamide被进行基于电解质，它允许在第一下面直接成长的nanotube的第二层。从FESEM调查，我们发现第二层的厚度对应于阳极化时间，增加哪个将导致在第一层上的过多的蚀刻。第一层在阳极化过程期间保护了更低的免受氟化物腐蚀的伤害。双层TiO2nanotube数组没在甲基橘子降级实验显示出利益到photodegradation效果。

简介：

简介：

简介：

简介：

简介：

简介：Aone-pot,solvent-thermalprocesswasusedtocreatetheultrafineZnFe2O4nanoparticlesphotocatalyst.Duringthesolvent-thermalprocess,theinsituself-formingNaClnotonlyservedasa"cage"toconfinetheiondiffusion,butalsoactedasamicroreactorfornanocrystallitegrowth.Anaverageparticlesizeof~10nmandahigh-specificsurfaceareaof~112.9m2/gwereobservedfortheultrafineZnFe2O4nanoparticlesOwingtothesynergisticeffectofultrafineparticlesize,thefullutilizationofthevisiblelightregionandhighconductionband(CB)position,ultrafineZnFe2O4photocatalystdisplayedanefficientphotocatalyticCO2reductionundervisiblelightillumination.Besides,theultrafineZnFe2O4photocatalystshowedhighproductionselectivityforCH3CHOandC2H5OHgenerationinaqueousCO2/NaHCO3solution.Thisworkmayprovideanewideaforthesynthesisofnewhigh-efficiencyphotocatalysts.

简介：

简介：WithFe(NO3)39H2OandBi(NO3)35H2Oasrawmaterials,differentsillenite-typecompoundsandelementalbismuthwerepreparedbyafacileone-potsolvothermalmethodusingH2O,C2H5OH,(CH2OH)2andC3H8O3assolvents,respec-tively.Thestructure,morphology,elementalcompositionsandpropertiesofsampleswereexaminedbyXRD,SEM,TEM,ICP,XPS,N2adsorptionanddesorption,UV-visDRSandPL.ThephotocatalyticactivitiesofdifferentsampleswereevaluatedbythephotodegradationofRhBundervisible-lightirradiation(λ>400nm),andresultsshowthatBi36Fe2O57preparedusingC2H5OHasthesolventownstheoptimumperformance.Inordertoexplorethereactionmechanism,anadditionalexperimentwasdesignedtoinvestigatethemainactivespeciesduringthephotodegradationprocessviadissolvingdifferenttrappingagentsinthereactionsolutionbeforelightirradiation.TheresultsshowthatsuperoxideradicalanionsplayamajorroleinthissystemsincetheRhBdegradationwassignificantlysuppressedaftertheadditionofbenzoquinone.