Journal
POLYHEDRON
Volume 30, Issue 6, Pages 971-975Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2010.12.044
Keywords
NiO nanoparticles; Tris(ethylenediamine)Ni(II); Metal oxides; Thermal decomposition; Ferromagnetic behavior
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Funding
- Lorestan University Research Council
- Iran Nanotechnology Initiative Council (INIC)
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NiO nanoparticles with an average size of 15 nm were easily prepared via the thermal decomposition of the tris(ethylenediamine)Ni(II) nitrate complex [Ni(en)(3)](NO3)(2) as a new precursor at low temperature, and the nanoparticles were characterized by thermal analysis (TGA/DTA), X-ray diffraction (XRD), Fourier-transformed infrared spectroscopy (FT-IR), UV-Vis spectroscopy, BET specific surface area measurement, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM) and magnetic measurements. The magnetic measurements confirm that the product shows a ferromagnetic behavior at room temperature, which may be ascribed to a size confinement effect. The NiO nanoparticles prepared by this method could be an appropriate photocatalytic material due to a strong absorption band at 325 nm. This method is simple, fast, safe, low-cost and also suitable for industrial production of high purity NiO nanoparticles for applied purposes. (C) 2011 Elsevier Ltd. All rights reserved.
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