Abstract
In this research, ferrite magnetic nanoparticles (Fe3O4) from natural iron sand have been synthesized by co-precipitation technique with varying stirring time and sonification process. The purpose of this study was to determine the effect of 6 hours of synthesized magnetic nanoparticles (MNPs) on the resulting crystal size. The different structures and properties of the synthesized Fe3O4 nanoparticles were investigated using X-Ray Diffraction (XRD), Scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), and Energy Dispersion X-ray (EDX), respectively. XRD and SEM produced mean crystal sizes over the range of 13.93 nm and particle sizes of 14.8 nm. The EDX test explained that the Fe3O4 compound was successfully formed at 6.00 KeV. FTIR showed the element content of Fe-O at 555 cm-1. This study’s results indicate the MNPs synthesis process at 6 hours and the sonification process can produce Fe3O4 nanoparticles with a minimum size at the optimal time compared to synthesis at 8 hours, 7 hours, and 5 hours.
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