Synthesis of Hematite Nanoparticles by Ball Milling and the Study of the Magnetic Properties and its Microstructure

Document Type : Research Article

Authors

1 Department of Chemical Engineering, Islamic Azad University, Iranshahr Branch, Iranshahr, Iran

2 Department of Chemical Engineering, Iranshahr Branch, Islamic Azad University, Iranshahr, Iran

Abstract

This study focuses on the synthesis and characterization of hematite nanoparticles using the ball milling process. The research investigates the changes in microstructure and magnetic properties of the powders during the milling process using XRD, SEM, TEM, and VSM techniques. The crystallite size is determined through XRD patterns using Scherer methods. It is found that the particle size decreases and lattice parameters with extended milling times. XRD and TEM analysis estimate the average particle size of the hematite nanoparticles to be around 30 nm and 12 nm, respectively. The SEM image shows uniform dispersion and a spherical morphology. The magnetic saturation increases as a result of the ball milling process, and the VSM results indicate that the saturation magnetic value increases with longer milling times. The morphology of the particles is predominantly spherical or semi-spherical. The study concludes that the shape and size of the synthesized particles are influenced by the milling time parameter. Both SEM and XRD results highlight the significant influence of milling time on the shape and size of the synthesized particles.

Highlights

  • Investigation of hematite nanoparticles synthesized by ball milling at room temperature.
  • The microstructure and magnetic property of hematite nanoparticle are described.
  • Investigation efficacy of different parameters of ball milling on product properties.

Keywords

References

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Chemical Process Design
Volume 2, Issue 2
December 2023
Pages 52-59

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