Morphology-controlled synthesis of ZnS nanostructures via single-source approaches

Morphology-controlled synthesis of ZnS nanostructures via single-source approaches
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通过单源方法形态控制合成 ZnS 纳米结构

DOI:
10.1016/j.materresbull.2010.03.013
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发表时间:
2010-07
影响因子:
5.4
通讯作者:
Qiang, Fei
Qiang, Fei
中科院分区:
材料科学2区
文献类型:
--
作者:
Zhu, Junwu;Wang, Meijuan;Lu, Lude;Wang, Xin;Han, Qiaofeng;Qiang, Fei

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以单源前驱体Zn(S2 COC 2 H5)2为原料,在不使用表面活性剂或模板剂的情况下,合成了中空、实心球形和多面体形状的ZnS纳米粒子。采用X射线衍射、扫描电镜、透射电镜对样品进行了表征。结果表明,Zn(S2 COC 2 H5)2分别以N,N-二甲基甲酰胺(DMF)、乙二醇(EG)或水为溶剂,在80°C下进行溶液热分解,可以很容易地制备出由纳米颗粒组装而成的ZnS空心球和实心球,而相同前驱体的溶剂热过程则可以制备出平均粒径为120 nm的多面体状ZnS纳米颗粒。通过室温发光和紫外-可见漫反射光谱研究了ZnS纳米结构的光学性质。
ZnS nanoparticles of various morphologies, including hollow or solid spherical, and polyhedral shape, were synthesized from single-source precursor Zn(S2COC2H5)2without using a surfactant or template. The as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy. The results indicate that ZnS hollow and solid spheres assembled by nanoparticles can be easily generated by the solution phase thermalysis of Zn(S2COC2H5)2at 80°C using N, N-dimethylformamide (DMF) and ethylene glycol (EG) or water as solvents, respectively, whereas solvothermal process of the same precursor led to ZnS nanoparticles of polyhedral shape with an average size of 120nm. The optical properties of these ZnS nanostructures were investigated by room-temperature luminescence and UV–vis diffuse reflectance spectra.
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