Preparation and Magnetic Property of Bi2Fe4O9 Nanoparticles by Hydrothermal Method
Bi2Fe4O9 nanoparticles were prepared at low temperature via a facile, one-step hydrothermal synthesis process using iron(III) nitrate nonahydrate (Fe(NO3)3•9H2O) and bismuth nitrate pentahydrate (Bi(NO3)3•5H2O) as starting materials and sodium hydroxide (NaOH) as precipitant and mineralizer. XRD results indicated that the as-prepared nanoparticles are pure orthorhombic Bi2Fe4O9. SEM images revealed that the as-prepared Bi2Fe4O9 nanoparticles have a sheet-like morphology. They are paramagnetic at room temperature demonstrated by the magnetic measurements.
Wei Pan and Jianghong Gong
H. Y. Miao et al., "Preparation and Magnetic Property of Bi2Fe4O9 Nanoparticles by Hydrothermal Method", Key Engineering Materials, Vols. 368-372, pp. 112-114, 2008