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时间:2020-03-26
《多级结构氧化锌的构筑、形貌调控及其光催化活性.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第31卷第8期无机化学学报Vol_31No.82015年8月CHINESEJOURNALOFIN0RGANICCHEMISTRY1626.1636多级结构氧化锌的构筑、形貌调控及其光催化活性全微雷张金敏沈俊海李良超李佳佳(浙江师范大学化学与生命科学学院,金华321004)摘要:分别以混合常见二锌盐为锌源,以离子液体和柠檬酸钠为表面活性剂,在绿色温和的条件下采用二次沉积法制备出多级结构氧化锌。用XRD、IR、SEM、UV.Vis、PL等表征了样品的组成、结构、形貌、光致发光性能及光催化性能。探讨了表面活性剂、阴离子、温度等因素对氧化锌形貌的影响。结果表明,由不同表面活性剂所得到样品的多级结构有
2、较大的差异。此外,推测了在多级结构氧化锌形成过程中,阴离子和温度对样品形貌的调控作用,并对比了三种典型样品的光催化性能,其中样品一1的光催化性能最好。关键词:氧化锌;多级结构;形貌调控;光催化中图分类号:0614.24+1文献标识码:A文章编号:1001.4861(2015)08.1626—11DoI:10.11862/CJIC.2015.212HierarchicalZnO:Architecture,MorphologicalControlandPhotocatalyticActivityQUANWei-LeiZHANGJin—MinSHENJun-HaiLILiang—ChaoLIJia
3、-Jia(CollegeofChemistryandLifeSciences,ZhejiangNormalUniversity,Jinhuc~Zhejiang321004,China)Abstract:Underthegreenandmildconditions,thehierarchicalZnOwasfabricatedbythesecondarydepositionwithmixedtwozincsalts(zincsource),ionicliquid(surfactant).Thecomposition,structure,morphology,phot01uminescencep
4、ropertiesandphotocatalyticactivityofsampleswerecharacterizedbyXRD,IR,SEM,UV-VisandPL,respectively.Theinfluentialfactorsonsamplemorphology,suchassurfactant,thekindofanionandtemperature,werediscussed.Theresultsindicatethatsurfactanthasasignificantregulationonthemorphologiesofas—preparedZnOsamples.Fur
5、thermore,theanionandtemperaturealsoplayacriticalroleinthecrystalstructureandmorphologyofZnO.Inaddition,allofas—preparedhierarchicalZnOshowanexcellentphotocatalyticactivityonmethylorangeunderUVlamp,wherethesample一1isslightlybetterthanothers.Keywords:ZnO;hierarchicalstructure;morphologicalcontrol;pho
6、tocatalysis0Introductiondemands,thecontrolonmaterialmicroscopicmorp—hologyhasbeenpaidmuchattention[5~.AsoneoftheDuetothespecialmierostruetureandphysico—mostimportantsemiconductormaterials,ZnOhaschemicalproperties,inorganicmicro—nanomaterialsemergedasoneofthemostpromisingcandidatewithdifferentmicros
7、copicsizesandmorphologiesmaterialsowingtoitssuperiorpropertiesandthehavebeenwidelyappliedinoptics,electricity,magne—potentialadvantageinfutureelectrondevice【7_Ⅷ.Acco—tism,biologicalmedicine,catalysis,andoth
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