The influence of the starch coating on the magnetic properties of nanosized cobalt ferrites obtained by different synthetic methods

• Nanostructured cobalt ferrites' magnetic properties. “Janus effect” of starch coating on ferrite magnetization. Co-precipitation and hydrothermal methods/starch – increased Mechanochemical microemulsion decreased To investigate the behavior starch-coated ferrites, well-established synthetic methods, i.e., coprecipitation, mechanochemical, ultrasonically assisted microemulsion, microwave-assisted syntheses were chosen for their preparation. The obtained materials had pure single-phase spinel structures. Scanning transmission electron microscopy analyses revealed that morphology samples is not uniform, particle aggregation a dominant process. Fourier transform infrared spectra thermogravimetric analysis confirmed presence in all–coated samples. unusually higher saturation magnetization than as-prepared analogs, by methods , might be explained Ostwald ripening mechanism induced A decrease was noticed starch-functionalized nanomaterials synthesized mechanochemical comparison to size distribution such nanoparticles narrow, average diameter grains near critical