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Journal of Nanomaterials
Volume 2014, Article ID 175924, 6 pages
http://dx.doi.org/10.1155/2014/175924
Research Article

Hydrothermal Synthesis of Boron-Doped MnO2 and Its Decolorization Performance

School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

Received 18 June 2014; Revised 17 September 2014; Accepted 1 October 2014; Published 14 October 2014

Academic Editor: Young-Kuk Kim

Copyright © 2014 Ming Sun 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

To functionalize MnO2 with foreign ions is one of the commonly used methods to improve the adsorption/oxidation properties of MnO2. Boron-doped MnO2 was prepared by the reaction of MnSO4, KMnO4, and boric acid by a facile hydrothermal method. Boron-MnO2 was characterized by X-ray diffraction (XRD), Raman spectra, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected area electron diffraction pattern (SAED), and X-ray photo-electron spectroscopy (XPS) techniques. The characterization of XPS and EDX confirms that boron has been doped into MnO2, but the boron dopant has no obvious effect on the crystallization of MnO2 as shown by the results of XRD and Raman characterization. The boron-doped MnO2 nanorods display high performance in the methyl orange degradation with a decolorization degree of 90% in 2 min (5% B-MnO2 dosage, 5 mg; methyl orange concentration, 20 mg L−1).