Microwave-assisted one-step hydrothermal synthesis of pure iron oxide nanoparticles: magnetite, maghemite and hematite

• Published in: Journal of sol-gel science and technology 2011-11, Vol.60 (2), p.198-205
• Main Authors: Hu, Ling, Percheron, Aurelien, Chaumont, Denis, Brachais, Claire-Helene
• Format: Article
• Language: English
• Subjects: Ceramics; Chemistry; Chemistry and Materials Science; Colloidal gels. Colloidal sols; Colloidal state and disperse state; Composites; Electrons; Ethanol; Ethyl alcohol; Exact sciences and technology; Ferric chloride; Fourier transforms; General and physical chemistry; Glass; Hematite; Inorganic Chemistry; Iron chlorides; Iron oxides; Magnetite; Materials Science; Nanoparticles; Nanotechnology; Natural Materials; Optical and Electronic Materials; Original Paper; Photoelectrons; Physical and chemical studies. Granulometry. Electrokinetic phenomena; Sodium hydroxide; Spectrum analysis; Synthesis; Transmission electron microscopy; X ray photoelectron spectroscopy; X ray powder diffraction; X-rays
• ISSN: 0928-0707; 1573-4846
• DOI: 10.1007/s10971-011-2579-4

A simple, rapid, one-step synthesis way of pure iron oxide nanoparticles: magnetite (Fe 3 O 4 ), maghemite (γ-Fe 2 O 3 ) and hematite (α-Fe 2 O 3 ) was investigated. Nanoparticles were prepared by microwave synthesis, from ethanol/water solutions of chloride salts of iron (FeCl 2 and FeCl 3 ) in the presence of sodium hydroxide NaOH. X-ray powder diffraction (XRD), Transmission Electron Microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) were used to characterize these nanoparticles.