CAJ | 학술논문

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(UV-Vis)、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355 nm给出 ZnO 纳米粒子的特征吸收峰,FL光谱显示在400和550 nm 处产生荧光发射.ZnO 纳米粒子尺寸约为5 nm 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100 nm,长径比约为100,且具有良好的紫外发光性能.
수선이을순위용제,을산자위전구체,유산납위표면수식제,채용용액화학법,제득 ZnO 납미입자.이자제ZnO 납미입자위기체,통과단소방법제비침상ZnO 납미선속.통과자외-가견흡수광보(UV-Vis)、형광광보(FL)、투사전자현미경(TEM)、X사선연사(XRD)화소묘전자현미경(SEM)등방법대합성적양품진행표정.결과표명,소합성 ZnO 납미입자양품UV-Vis흡수광보재355 nm급출 ZnO 납미입자적특정흡수봉,FL광보현시재400화550 nm 처산생형광발사.ZnO 납미입자척촌약위5 nm 차립경분포교착.자제ZnO 납미입자양품경500℃단소후가득도침상ZnO 납미선속.납미선위륙방정계섬자광결구ZnO단정납미선,장도약위10μm,직경약위100 nm,장경비약위100,차구유량호적자외발광성능.
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 (UV-Vis),fluorescence spectroscopy (FL),transmission electron microscope (TEM)and scanning electron micro-scope (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 at 400 nm and 550 nm.The size of ZnO nanoparticals was near 5 nm with a narrow size distribution.The needle-like ZnO nanowires bundles were synthesized when the calcination temperature was 500 ℃.The obtained hexa-gonal 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.