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Synthesis of maghemite (γ-Fe2O3) nanoparticles by wet chemical method at room temperature
Authors:Esmaeel Darezereshki
Affiliation:Department of Mineral Processing Engineering, Bahonar University, P. O. Box 76169-133, Kerman, Iran Energy and Environmental Engineering Research Center (EERC), Bahonar University, Kerman, Iran
Abstract:In this research work an innovative one step method is described for the production of maghemite (γ-Fe2O3) nano-particles at room temperature. The nano-particles were characterized using X-ray diffraction (XRD), infrared spectrum (IR), transmission electron microscopy (TEM) and photon correlation spectroscopy (PCS), respectively. The average crystallite and particle size of the maghemite nano-particles were estimated to be 13 and 10 nm, by XRD and TEM, respectively. The TEM image showed that the γ-Fe2O3 nano-particles were of approximate spherical shape. Using the method presented here, maghemite nano-particles, 10 nm in size, could be produced without using organic solvent and oxidation.
Keywords:Maghemite  Magnetic materials  Nanoparticles  Powder technology  Precipitation  Wet chemical method
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