Synthesis of Magnetite Nanoparticles upon Microwave and Convection Heating

Resumo

Size-dependent properties of magnetite (Fe₃O₄) nanoparticles, obtained by convection heating and by the microwave method, are compared. Generally, the synthetic procedures involving microwave heating require less time and provide smaller particle sizes and narrower size distribution. Consequently, the specific area of the prepared samples increases. The results are based on the X-ray phase analysis, transmission electron microscopy (TEM), and nitrogen adsorption measurements (Brunauer–Emmett–Teller method).