<abstract xmlns="http://www.w3.org/1999/xhtml">α-Fe2O3 nanoparticles were synthesized via co-precipitation technique using ferric and ferrous salts and potassium hydroxide as precipitation agents. The samples were calcined at 350 °C, 550 °C and 750 °C for 3 hours. The obtained iron oxide was characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and dynamic light scattering (DLS). Crystallinity of the sample was studied by X-ray diffraction. SEM micrographs showed nonuniform size distribution of the particles forming agglomerates. TGA analysis revealed trace amount of weight loss and material stability for the samples calcined at temperatures above 500 °C. DLS results indicated that increasing of annealing temperature resulted in reduction of the particle size and more uniform size distribution. At the maximum annealing temperature of 750 °C, the mean diameter of the particles of 100 nm was observed.</abstract>

α-Fe2O3 nanoparticles were synthesized via co-precipitation technique using ferric and ferrous salts and potassium hydroxide as precipitation agents. The samples were calcined at 350 °C, 550 °C and 750 °C for 3 hours. The obtained iron oxide was characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and dynamic light scattering (DLS). Crystallinity of the sample was studied by X-ray diffraction. SEM micrographs showed nonuniform size distribution of the particles forming agglomerates. TGA analysis revealed trace amount of weight loss and material stability for the samples calcined at temperatures above 500 °C. DLS results indicated that increasing of annealing temperature resulted in reduction of the particle size and more uniform size distribution. At the maximum annealing temperature of 750 °C, the mean diameter of the particles of 100 nm was observed.

Synthesis of α-Fe2O3 nanoparticles and analyzing the effect of annealing temperature on its properties

Materials Science-Poland

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Synthesis of α-FeO nanoparticles and analyzing the effect of annealing temperature on its properties

α-Fe2O3 nanoparticles were synthesized via co-precipitation technique using ferric and ferrous salts and potassium hydroxide as precipitation agents. The...

Synthesis of α-Fe₂O₃ nanoparticles and analyzing the effect of annealing temperature on its properties

Published Online: May 08, 2020

Page range: 116 - 121

Received: Sep 17, 2018

Accepted: Apr 23, 2019

DOI: https://doi.org/10.2478/msp-2020-0005

Keywords
magnetic nanoparticles, α-FeO, co-precipitation, annealing temperature

© 2020 Bhargavi Ram Thimmiah et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Synthesis of α-Fe2O3 nanoparticles and analyzing the effect of annealing temperature on its properties

Published Online: May 08, 2020

Page range: 116 - 121

Received: Sep 17, 2018

Accepted: Apr 23, 2019

DOI: https://doi.org/10.2478/msp-2020-0005

Keywordsmagnetic nanoparticles, α-FeO, co-precipitation, annealing temperature

© 2020 Bhargavi Ram Thimmiah et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Synthesis of α-Fe₂O₃ nanoparticles and analyzing the effect of annealing temperature on its properties

Keywords
magnetic nanoparticles, α-FeO, co-precipitation, annealing temperature