苯乙烯协助水热制备高催化活性ZnO管.pdf

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1、第3O卷第11期无机化学学报Vol-30No．112014年11月CHINESEJ0URNALOFINORGANICCHEMISTRY2601—2606苯乙烯协助水热制备高催化活性ZnO管邵谦杨梦晨葛圣松吴亚林王亚云鲍力伟f山东科技大学化学与环境工程学院，青岛266590)摘要：采用苯乙烯微球为模板水热合成了直径为1~2txm，管壁厚度约200nm的ZnO管。用SEM和XRD对制得的样品进行表征．结果表明．醋酸锌浓度和水热时间在ZnO管的制备过程中起到重要作用。在实验结果的基础上，提出了ZnO管的形成机理。紫外．可见吸收光谱计算出ZnO管的禁带宽度为2．96

2、eV。合成的ZnO管对罗丹明B具有很高的紫外光催化活性。关键词：ZnO管；苯乙烯乳液；模板；光催化性能中图分类号：0614．24+1文献标识码：A文章编号：1001．4861(2014)11-2601—06DoI：10．11862／CJIC．2014．375Polystyrene·AssistedHydrothermalPreparationofZnOTubeswithHighPhotocatalyticActivitySHAOQianYANGMeng—ChenGESheng-SongWUYa—LinWANGYa—YunBAOLi-WeifCollegeof

3、ChemicalandEnvironmentalEngineering,ShandongUniversityofScience&Technology,Qingdao，Shandong266590,China)Abstract：ZnOtubeswithdiameterof1—2umandwallthicknessofc200nmweresynthesizedbyasimplehydrothermalmethodusingpolystyrene(PS)microspheresasthetemplate．ResultsfromSEMandXRDshowthatth

4、econcentrationofzincacetateandhydrothermaltimeplaysanimportantroleintheformationofZnOtubes．Thegrowthmechanismisproposed．ThebandgapvaluecalculatedfromaUV—VisabsorptionspectrumofZnOtubesis2．96eV．Theas—synthesizedZnOtubesexhibithighphotoeatalyticactivityfortheph0todegrada【i0nofRhodami

5、neBunderUVlightirradiation．Keywords：ZnOtubes；PSlatex；template；photocatalyticactivity0Introductiondrawsmoreandmoreattention．ZnOiSaⅡ一VIsemiconductorwithawidedirectRecently，dyeefiuentsfromtextile1ndustriesbandgap(3．37eV)andahighelectron-holeblindinghavebeenamoreandmoreseriousenvironme

6、ntalenergy(60my)atroomtemperature咧，andithasproblembecauseoftheirdificultytochemicaloroutstandingperformanceinthefieldofphotocatalysis【7】．biologicaldegradationt”．SemiconductorswithwideVariouskindsofnan0strcturedZnOsuchasnanobandgaparewidelyusedasphotocatalystsforthehollowspheres~81，

7、nanorod[9]，nanosheet[Ⅷ，nanoplate[”，degradationt2J．Ofthem，TiO2andZnOareextensivelyandothernfiero／nanostrueturehavebeenfabricatedstudiedmaterialsfortheirhighphotosensitivityandforphotocatalyticdecompositionofthedyeefluents．largebandg印．DuetothelowercostandhigherAmongtheseZnOstructures

8、，thepreparationofZnOphotoc