ZnO一维纳米材料的制备与表征  

Synthesis and characterization of ZnO one-dimensional nanomaterials

作　　者：陈延明[1] 贾宏伟[1] 

机构地区：[1]沈阳工业大学石油化工学院,沈阳111003

出　　处：《功能材料》2015年第5期5151-5154,共4页Journal of Functional Materials

基　　金：辽宁省科技厅博士基金资助项目(200644)

摘　　要：首先以乙醇为溶剂,乙酸锌为前驱体,油酸钠为表面修饰剂,采用溶液化学法,制得ZnO纳米粒子。以自制ZnO纳米粒子为基体,通过煅烧方法制备针状ZnO纳米线束。通过紫外-可见吸收光谱(UVVis)、荧光光谱(FL)、透射电子显微镜(TEM)、X射线衍射(XRD)和扫描电子显微镜(SEM)等方法对合成的样品进行表征。结果表明,所合成ZnO纳米粒子样品UV-Vis吸收光谱在355nm给出ZnO纳米粒子的特征吸收峰,FL光谱显示在400和550nm处产生荧光发射。ZnO纳米粒子尺寸约为5nm且粒径分布较窄。自制ZnO纳米粒子样品经500℃煅烧后可得到针状ZnO纳米线束。纳米线为六方晶系纤锌矿结构ZnO单晶纳米线,长度约为10μm,直径约为100nm,长径比约为100,且具有良好的紫外发光性能。Firstly,ZnO nanoparticles have been synthesized by using ethanol as solvent,zinc acetate as zinc sources and sodium oleate as surface capping agents through wet-chemical route.Then the needle-like ZnO nanowires bundles were synthesized by high temperature calcination method by using the as-synthesized ZnO nanoparticals.All of the as-synthesized samples were characterized by UV-Vis absorption spectroscopy(UVVis),fluorescence spectroscopy(FL),transmission electron microscope(TEM)and scanning electron microscope(SEM).The results show that the obtained ZnO nanoparticals could give characteristic absorption peak locating at 355 nm in the UV-Vis absorption spectra.FL spectra showed two mainly emission peaks centering at400 nm and 550 nm.The size of ZnO nanoparticals was near 5nm with a narrow size distribution.The needlelike ZnO nanowires bundles were synthesized when the calcination temperature was 500℃.The obtained hexagonal wurtzite structure ZnO single crystal nanowires with length about 10μm,diameter about 100 nm,aspect ratio about 100. Meanwhile,the good ultraviolet luminescence performance of the as-synthesized ZnO nanowires was also detected in this work.

关 键 词：纳米ZNO 纳米线 溶液化学法 煅烧 

分 类 号：TB383[一般工业技术—材料科学与工程]