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Open Access Nano Express

Synthesis and optical property of one-dimensional spinel ZnMn2O4 nanorods

Pan Zhang1, Xinyong Li12*, Qidong Zhao1 and Shaomin Liu2*

Author Affiliations

1 Key Laboratory of Industrial Ecology and Environmental Engineering and State Key Laboratory of Fine Chemical, School of Environmental Science & Technology, Dalian University of Technology, Dalian, 116024, China

2 Department of Chemical Engineering, Curtin University, Perth, WA 6845, Australia

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Nanoscale Research Letters 2011, 6:323  doi:10.1186/1556-276X-6-323

Published: 11 April 2011

Abstract

Spinel zinc manganese oxide (ZnMn2O4) nanorods were successfully prepared using the previously synthesized α-MnO2 nanorods by a hydrothermal method as template. The nanorods were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV-Vis absorption, X-ray photoelectron spectroscopy, surface photovoltage spectroscopy, and Fourier transform infrared spectroscopy. The ZnMn2O4 nanorods in well-formed crystallinity and phase purity appeared with the width in 50-100 nm and the length in 1.5-2 μm. They exhibited strong absorption below 500 nm with the threshold edges around 700 nm. A significant photovoltage response in the region below 400 nm could be observed for the nanorods calcined at 650 and 800°C.