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Issue 6, 2012
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ZnO/SnO2 hierarchical and flower-like nanostructures: facile synthesis, formation mechanism, and optical and magnetic properties

Zhao-Qing Liu,ab  Liang-Xin Ding,a  Zi-Long Wang,a  Yan-Chao Mao,a  Shi-Lei Xie,a  Yuan-Ming Zhang,*c  Gao-Ren Lia  and  Ye-Xiang Tong*a 
Author affiliations

* Corresponding authors

a MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Institute of Optoelectronic and Functional Composite Materials, Sun Yat-sen University, Guangzhou, China
E-mail: chedhx@mail.sysu.edu.cn

b School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China

c Department of Chemistry, Jinan University, Guangzhou, China
E-mail: tzhangym@jnu.edu.cn

Abstract

Hierarchical and flower-like nanostructures with ZnO backbones and SnO2 branches were successfully prepared by electrodeposition (for ZnO nanorod arrays) and hydrothermal growth (for SnO2). The SnO2 nanorods grew epitaxially on the sides of ZnO nanorods. The morphologies and surface areas of ZnO/SnO2 hierarchical nanostructures can be tailored by changing the reaction time. Such hybrid ZnO/SnO2 nanostructures were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis spectrophotometry and by using an accelerated surface area and porosimetry system (ASAP 2020M). A possible formation process and growth mechanisms for such hybrid ZnO/SnO2 nanostructures has been proposed based on series of time-dependent experiments. The UV properties show an enhanced as near-band gap emission compared with the primary ZnO nanorods. In addition, the magnetic properties of hierarchical ZnO/SnO2 nanostructures were also studied.

Graphical abstract: ZnO/SnO2 hierarchical and flower-like nanostructures: facile synthesis, formation mechanism, and optical and magnetic properties

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Publication details

The article was received on 29 Sep 2011, accepted on 12 Dec 2011 and first published on 26 Jan 2012


Article type: Paper
DOI: 10.1039/C2CE06296H
Citation: CrystEngComm, 2012,14, 2289-2295
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    ZnO/SnO2 hierarchical and flower-like nanostructures: facile synthesis, formation mechanism, and optical and magnetic properties

    Z. Liu, L. Ding, Z. Wang, Y. Mao, S. Xie, Y. Zhang, G. Li and Y. Tong, CrystEngComm, 2012, 14, 2289
    DOI: 10.1039/C2CE06296H

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