Synthesis and properties of Fe 3 O 4 nanoparticles by sol-vothermal method using iron(III) acetylacetonate

Well dispersed Fe 3 O 4 nanoparticles were synthesized at 180°C by sol-vothermal method, using iron (III) acetylacetonate as iron source and poly-vinilpyrrolidone (PVP) as special surfactant. The factors affecting reaction system, such as reaction temperature and time, the amount of iron source and surfactant are discussed. The synthesized Fe 3 O 4 particles show excellent saturation magnetization and super-paramagnetic properties, demonstrating their potential applicability in magnetic nanodevices and bio-medicine.