Abstract:
Iron oxide nanoparticle is particle with a diameter between 1-100 nanometers. The iron oxide consists of
magnetite, hematite, or maghemite. This study aimsed to prepare magnetic nanoparticles from Sunur Beach
sand Pariaman district West Sumatera using a two stage ball milling technique and determine their magnetic
properties. Magnetic nanoparticles structure, magnetic phases were studied using X-Ray Diffraction (XRD)
technique. The elemental composition of the sample was analyzed using X-Ray Fluorescence (XRF)
Spectroscopy. The results show that the elemental composition of magnetic particles such as Fe increases with
increasing milling ball size, while the elemental composition of nonmagnetic particles such as silicon decreases.
The result also confirms that the magnetic phase of the sample is magnetite (Fe3O4). However, some other
phases including SiO2 and FeTiO3 were also detected in the diffraction pattern. This indicates that the sample is
not purely magnetite.
