期刊
CERAMICS INTERNATIONAL
卷 40, 期 1, 页码 1351-1358出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.07.016
关键词
alpha-Fe2O3; Nanocrystals; Hydrothermal; Band gap
A facile hydrothermal method for the synthesis of alpha-Fe2O3 nanocrystals is described. The crystalline structure and morphology of the as-prepared product were investigated by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Powder X-ray diffraction pattern exhibited pure rhombohedral structure. The SEM and TEM results showed that the average diameter of the highly crystalline ellipsoid shape alpha-Fe2O3 nanocrystals was about 40-50 nm. The band gap energies were investigated by the UV-vis absorption studies. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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