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Abstract
We report the influence of different glycine-to-nitrate ratios on the physical and magnetic properties for synthesized zinc-ferrite by microwave-assisted combustion route. Phase impurity and surface morphology investigated with XRD analysis and field emission- scanning electron microscopy, indicated that spinel structure were formed.Average particles size increased with the decrease of glycine to nitrate ratio. Magnetic measurement results indicated that high values of saturation magnetization were produced with low glycine/nitrate ratio. Optical properties of the investigated ferrites exhibited photo absorption from UV to visible region with energy gap values that decreased with the decrease of glycine-to-nitrate ratio. Mainly two broad metal-oxygen bands for zinc-ferrite were seen in FT-IR spectra.
Highlights
Ferrites are compounds of mixed oxides of iron and one or more other materials which have ferrimagnetic properties[1]
Three samples of the spinel Zn-ferrites have been successfully synthesized by microwave combustion route
The results revealed : (i) This route via glycine provides a simple route, rapid and environmental friendly using cheap precursors and needs short time, (ii) The fuel amount has a major impact on structure, optical and magnetic properties
Summary
Ferrites are compounds of mixed oxides of iron and one or more other materials which have ferrimagnetic properties[1]. Spinel-type ferrites of composition MFe2O4 [M = Mn, Ni, Zn, Co, etc.) exhibit interesting properties so that they have wide potential technological applications in different fields[4].The nano zinc ferrite has been extensively studied among the spinel family by worldwide researchers due to their unique chemical and physical properties based on their size compared to the bulk counterpart materials[5]. When the particle size decreases, the volume fraction of atoms at surfaces or in interfaces increases This gives rise to a modification of the thermal, electronic, optical, magnetic properties, etc., of nanostructured materials compared to their coarse-grained counterparts and strongly affects materials research in general [6]. The present work is aimed to synthesize zinc ferrite powders using microwaveassisted combustion route, using different glycine–to–nitrate ratio, and to examine their physical and magnetic properties
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