title: FTIR and UV-vis diffuse reflectance spectroscopy studies of the wet chemical (WC) route synthesized nano-structure CoFe(2)O(4) from CoCl(2) and FeCl(3).
abstract: Nano-structure CoFe(2)O(4) has been fabricated by wet chemical route using CoCl2 and FeCl3 as simple precursors. The prepared nano-structure samples was calcined at 600°C and characterized by fourier transform infrared spectra (FTIR), UV-vis diffuse reflectance spectroscopy (DRS), X-ray powder diffractometry (XRD), and field emission scanning electron microscopy (FESEM). X-ray diffraction patterns confirmed the presence of the spinel phases with average crystallite sizes of 47nm. Field emission scanning electron microscopy investigations showed spherical morphology of nanoparticles with average particle size of 46nm. The FTIR spectra of CoFe(2)O(4) nanoparticles showed absorption bands at about 594cm(-1) and 401cm(-1) due to the stretching vibrations of Co-O and Fe-O respectively. Investigation of the optical properties of the produced nano-structure CoFe(2)O(4) confirmed its semiconducting properties by revealing two optical band gaps at 1.4 and 2.0eV.
authors.affiliation: Nanotechnology Laboratory, Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Islamic Republic of Iran. Electronic address: habibi@chem.ui.ac.ir.
authors.forename: Mohammad Hossein
authors.initials: MH
authors.lastname: Habibi
authors.affiliation: Nanotechnology Laboratory, Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Islamic Republic of Iran.
authors.forename: Hadi Janan
authors.initials: HJ
authors.lastname: Parhizkar
mesh_terms: D002712:Chlorides / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D005296:Ferrous Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D012666:Semiconductors; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D002712:Chlorides; D005290:Ferric Compounds; D005296:Ferrous Compounds; D003035:Cobalt; C018021:cobaltous chloride; C024555:ferric chloride
keywords: Cobalt ferrite; Nano-structure; Spinel; Wet chemical