Green synthesis, Structural and Magnetic Properties of Mg0.5Zn0.5Fe2O4 Ferrite Nanoparticles by the Coprecipitation Method: Averrhoa bilimbi fruit

The addition of Averrhoa bilimbi (AB) extract to the Mg0.5Zn0.5Fe2O4 nanoparticles has been demonstrated to enhance the magnetic properties of the material, which was synthesized by the Coprecipitation method. XRD reveals that Mg0.5Zn0.5Fe2O4 has an average crystallite size of 8 nm and a lattice constant of 8.0554 angstrom; whereas the addition of Averrhoa bilimbi juice to Mg0.5Zn0.5Fe2O4 has an average crystallite size of 12 nm and a lattice constant of 8.042 angstrom. This small difference of 4 nm significantly impacted the spinel nanostructure. The FTIR spectrum of the AB-Mg0.5Zn0.5Fe2O4 nanoparticles has revealed two significant absorption bands; the first absorption band is attributed to the stretching vibration of the tetrahedral Mg-O and Zn-O bonds. The second absorption band is attributed to the stretching vibration of the octahedral Fe-O bonds and confirming the spinel ferrite structure. VSM shows that the coercivity of Mg0.5Zn0.5Fe2O4 soft ferrimagnetic material decreases at 600 degrees C when Averrhoa Bilimbi is added, while its saturation magnetization increases. Consequently, Averrhoa Bilimbi fruit acts as an excellent capping agent to enhance magnetization. These ferrite nanoparticles have been demonstrated to exhibit antibacterial activity, inhibiting the growth of harmful bacteria such as Staphylococcus aureus, Proteus vulgaris, and Escherichia coli. This is achieved by creating a magnetic field that disrupts the bacterial cell membrane, resulting in cell death. So, this material has very interesting potential applications in the biological field, such as Magnetic Resonance Imaging (MRI), Magnetic Hyperthermia Therapy, Magnetic Drug Targeting, Magnetic Separation of Cells, Magnetic Biosensors, Magnetic Filters, Magnetic Particle Imaging, Magnetic Separation of DNA, Magnetic Separation of Proteins, Magnetic Separation of Enzymes, and Magnetic Separation of Cells.