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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 567278, 6 pages
http://dx.doi.org/10.1155/2014/567278
Research Article

Catalyst-Free Synthesis of Hollow-Sphere-Like ZnO and Its Photoluminescence Property

1School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
2Key Laboratory of Fine Chemicals of College of Heilongjiang Province, Qiqihar University, Qiqihar 161006, China
3School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Received 3 May 2014; Revised 6 June 2014; Accepted 8 June 2014; Published 23 June 2014

Academic Editor: Yong Ding

Copyright © 2014 Junye Cheng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Hollow-sphere-like ZnO was successfully prepared by a facile combustion route at 950°C, and no external catalysts or additives were introduced. The morphology and structure of the hollow-sphere-like ZnO were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and energy dispersive spectrometer (EDS). The possible growth mechanism was discussed in detail. In addition, the as-obtained hollow-sphere-like ZnO exhibited a strong green emission at 518 nm and a weak UV emission at 385 nm. We believe that the hollow-sphere-like ZnO material may be a good candidate for application in optical devices and catalyst systems.