Abstract
In this study, Magnetite (Fe3O4) nanoparticles from the solution of ferrous/ferric mixed salt solution for alkaline medium were prepared using the chemical co-precipitation process. Fe3O4 NPs was characterized by XRD analysis, SEM, and TEM to confirm the formation of Magnetite (Fe3O4) nanoparticles. After that, the Fe3O4 nanoparticles were doped PMMA and PEO as nanocomposites with different concentrations of Fe3O4 NPs were prepared by the casting technique. The interaction between the polymer blend and Fe3O4 nanoparticles was confirmed by XRD, FT-IR and DFT. It was observed that the amorphousity increased with the addition of Fe3O4 by XRD. The optical energy gap (direct and indirect) of the pure blend was reduced by adding the Fe3O4 nanoparticle. Meanwhile, ionic conductivity of the solid electrolytes was increased with the addition of filler at room temperature. The ac conductivity, dielectric properties, and loss tangent analysis was carried out for pure blend and nanocomposites, an improvement was observed in electrical, ε′, ε″ and tanδ analysis with the addition of Fe3O4 NPs. Magnetic data displayed a good coercive field and saturation magnetism compared to the pure blend. Hence, based on their conductivity, the nanocomposites are a potential candidate for use in high dielectric constant capacitors, and will also be useful for use in hard disk components based on their magnetic properties.
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•Synthesis of Fe3O4 nanoparticles by chemical co-precipitation process.•The FT-IR and DFT spectra confirm the interaction between the functional groups of PMMA/PEO and Fe3O4 NPs.•X-ray diffraction patterns confirmed the increase in the degree of amorphousity for nanocomposites compare pure blend.•The conductivity showed that all nanocomposites films improved as compared to pure blend.•Magnetic properties improved for nanocomposites films compare pure blend.