Synthesis of Iron Oxide Nanoparticles Using Isobutanol

Abstract EN

Iron oxide nanoparticles were synthesized by precipitation in isobutanol with sodium hydroxide and ammonium hydroxide.

The isobutanol played a role of a surfactant in the synthesis.

The nanoparticles were calcined for 100 min to 5 hours in the range of 300 to 600°C.

The characterization of the samples by FTIR (Fourier-transform infrared) and XRD (X-ray diffraction) confirmed the formation of γ-Fe2O3 (maghemite) from Fe3O4 (magnetite) at calcination at 300°C.

The morphology and particle size were studied by SEM (scanning electron microscope).

Nanoparticles in the range of 11–22 nm prepared at 0.09 M of ferrous chloride exhibited superparamagnetic properties.

Nanoparticles synthesized with ferrous chloride and ammonium hydroxide at 75°C and calcined at 530°C for 2 h were α-Fe2O3 (hematite).