Synthesis, Surface Modification and Characterisation of Iron Nanoparticles

In the study, the iron (Fe₃O₄) nanoparticles were synthesised and two types of surface modifications such as iron-APTES, iron-chitosan and iron-silica were performed. The size, structure and morphology of the nanoparticles were characterized using transmission electron microscopy (TEM). The average particle size for both naked and surface modified MNPs was found from the XRD pattern using Debye-Scherrer relation. The binding of Chitosan and Silica onto the nanoparticles were confirmed by the Fourier transform infrared (FTIR) spectroscopy. The results from all characterisations showed that there was not much changes in the size and shape of the nanoparticles before and after surface modification.