Hematite (α-Fe2O3) Nanoparticles: Synthesis, Characterization and Optical Properties

Document Type : Original Research Articles

Authors
Aliakbar Dehno Khalaji 1
Seyyedeh Masomeh Mousavi 2
Zahra Palang Sangdevini 2
Marketa Jarosova 3
Pavel Machek 3
Michal Dusek 4
1 Department of chemistry, Faculty of Science, Golestan Universtiy, Gorgan, Iran
2 Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran
3 Institute of Physic of the Czech Academy of Sciences, v.v.i., Na Slovance 2, 182 21 Prague 8, Czech Republic
4 Institute of Physic of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
10.22059/jsciences.2021.312076.1007584
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
α-Fe2O3 nanoparticles
Hydrothermal
Morphologies
X-ray diffraction
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Journal of Sciences, Islamic Republic of Iran
Volume 32, Issue 3
Summer 2021
Pages 213-219