Synthesis and characterization of iron oxide nanoparticles by solvothermal method

• Published in: Protection of metals and physical chemistry of surfaces 2014-09, Vol.50 (5), p.628-631
• Main Authors: Mishra, Deepti, Arora, Ruma, Lahiri, Swati, Amritphale, Sudhir Sitaram, Chandra, Navin
• Format: Article
• Language: English
• Subjects: Bending; Characterization and Evaluation of Materials; Chemistry and Materials Science; Corrosion and Coatings; Fourier transforms; Industrial Chemistry/Chemical Engineering; Infrared spectroscopy; Inorganic Chemistry; Iron; Iron oxides; Materials Science; Metallic Materials; Nanoparticles; Nanoscale and Nanostructured Materials and Coatings; Spectra; Stretching; Tribology
• ISSN: 2070-2051; 2070-206X
• DOI: 10.1134/S2070205114050128

In the present work iron oxide nanoparticles have been synthesized by alkaline solvo thermal method using anhydrous ferric chloride, sodium hydroxide, polyethylene glycol and cetyl trimethyl ammonium bromide and characterized by X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), Energy-dispersive X-ray Spectroscopy (EDX) and Thermal Gravimetric Analysis (TGA). XRD indicated that the product is a mixture of different phases of iron oxide viz. gamma-Fe 2 O 3 (maghemite, tetragonal), Fe 2 O 3 (maghemite, cubic), Fe 3 O 4 (magnetite, cubic) and ɛ-Fe 2 O 3 (epsilon iron oxide). FESEM studies indicated that size of the particles is observed in the range of about 19.8 nm to 48 nm. EDX spectral analysis reveals the presence of carbon, oxygen, iron in the synthesized nanoparticles. The FTIR spectra indicated absorption bands due to O-H stretching, C-O bending, N-H stretching and bending, C-H stretching and Fe-O stretching vibrations. TGA curve represented weight loss of around 3.0446 % in the sample at temperature of about 180°C due to the elimination of the water molecules absorbed by the nanoparticles from the atmosphere.