Title of article :
Hematite (α-Fe2O3) Nanoparticles: Synthesis, Characterization and Optical Properties
Author/Authors :
Khalaji, A.D Department of Chemistry - Faculty of Science - Golestan University - Gorgan, Islamic Republic of Iran , Mousavi, S.M Department of Chemistry - Faculty of Science - Golestan University - Gorgan, Islamic Republic of Iran , Palang Sangdevini, Z Department of Chemistry - Faculty of Science - Golestan University - Gorgan, Islamic Republic of Iran , Jarosova, M Institute of Physic of the Czech Academy of Sciences - Prague , Czech Republic , Machek, P Institute of Physic of the Czech Academy of Sciences - Prague , Czech Republic , Dusek, M Institute of Physic of the Czech Academy of Sciences - Prague , Czech Republic
Abstract :
In this paper, we report a simple and convenient method for the synthesis of α-Fe2O3
nanoparticles via hydrothermal process followed by thermal decomposition using the
new iron precursor, which was obtained by mixing of benzoic acid (BA) and
Fe(NO3)3∙3H2O in water as solvent. Two products with almost similar morphologies
and sizes were obtained by changing the calcination temperature (500 and 600ºC) for 2
h in the air atmosphere. They were named as Fe-500 and Fe-600, respectively, and
characterized by Fourier transform infrared (FT-IR) and ultraviolet-visible (UV-Vis)
spectroscopy, X-ray powder diffraction (XRD), Energy dispersive spectroscopy (EDS)
and transmission electron microscopy (TEM). FT-IR, UV-Vis, XRD and EDS results
confirm the formation of α-Fe2O3 phase. Also, TEM images confirm that the size of the
products is less than 100 nm.
Keywords :
X-ray diffraction , α-Fe2O3 nanoparticles , Hydrothermal , Morphologies
Journal title :
Journal of Sciences Islamic Republic of Iran
