青岛科技大学  English 
王莉
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副教授 硕士生导师  

教师拼音名称:WL

入职时间:2006-07-14

联系方式:13854288388

职称:副教授

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Preparation and characterization of ZnO hollow micro-spheres with excellent property of blue emission

摘要:With the assistance of glucose and citrate, hollow micro-spheres of zinc citrate were prepared through low-temperature hydrothermal route, and then hollow micro-spheres of ZnO were obtained by calcinating the precursor at 500°C in air. The composition, structures and morphologies of products were characterized by XRD, TG-DSC, SEM, TEM and IR. It was investigated that the precursor hollow micro-spheres with average diameter of 2 μm and thickness of 200 nm were prepared by the hydrothermal route. ZnO hollow micro-spheres prepared by calcinating the precursor with average diameter of 1 μm and thickness of 100 nm were composed of nanoparticles with diameter of 20-30 nm. The room-temperature photoluminescence property of the sample was studied. Under excitation wavelength of 325 nm, the as-prepared ZnO hollow micro-spheres possess excellent properties of blue emission, locating at 469 nm.

卷号:28

期号:2

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