Microwave-Assisted Synthesis of BaFe₁₂O₁₉ Nanoparticles and Ethyl Cellulose-Based Magnetic Nanocomposite

Abstract

Hard magnetic BaFe₁₂O₁₉ (BaFe) nanoparticles were synthesized by a facile microwave-assisted reaction. The magnetic nanoparticles were then added to ethyl cellulose to make magnetic nanocomposites. The nanoparticles and nanocomposites were then characterized using X-ray diffraction and scanning electron microscopy. The magnetic properties of the samples were also investigated using an alternating gradient force magnetometer. The barium ferrite nanoparticles exhibit ferromagnetic behavior at room temperature, with a saturation magnetization of 38 emu/g and a coercivity of 2695 Oe. The distribution of the BaFe nanoparticles into the ethyl cellulose matrix increases the coercivity; hence it makes the sample magnetically harder.

Keywords:

• nanocomposites
• BaFe
• magnetic properties
• nanoparticles

Acknowledgments

The authors would also like to thank N. Nabiyouni for English assistance.

Funding

This work has been supported financially by Arak University Research Council (AURC) under the grant number of 90/12646 [90-11-26]. The authors acknowledge AURC for the financial support.