Influence of Fe ion substitution on the chemical and physical features of tin ferrite nanoparticles

Current investigation represents the influence of Fe+2 ion substitution in structural, vibrational, optical and magnetic properties of tin ferrite (SnFe2O4) nanoparticles using X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FTIR), vibrating sample magnetometer (VSM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray (EDX), dynamic light scattering (DLS) and UV–visible spectroscopy. The FexSn1-xFe2O4 nanoparticles were synthesized with different Fe concentrations (x = 0.0, 0.25, 0.50, 0.75, and 1.00) using the simple co-precipitation method. The formation of the cubic spinel structure was confirmed by the XRD and FTIR results. By entering more Fe+2 content to the tin ferrite structure, the lattice parameter and unit cell volume of tin ferrite nanoparticles were found to decrease. In the IR spectra, a slight shift to lower wavenumber was observed for the υ2 ( $$Sn_{{{\text{octa}}}}^{ + 2} - O)$$ band. Also, the saturation magnetization of SnFe2O4 nanoparticles was initially increased until x = 0.25 and then started to decrease.