Synthesis and Characterization of Alkaline Earth Metals Ferrites

Abstract

Ferrites of different divalent alkaline earthmetals were synthesized at normal conditions by adopting established co-precipitation method using simple salts of metals. The synthesized ferrite materials includedMagnesium ferrite (Mg-Fer),Calcium ferrite (Ca-Fer),Barium ferrite (Ba-Fer),Strontiumferrite (Sr-Fer)and Iron ferrite (Fe-Fer). These ferrite materials were characterized by various spectroscopic techniques such as Fourier transform infrared spectroscopy(FT-IR), powder X-ray diffraction (XRD)and atomic absorption spectroscopy (AAS). The FT-IR spectroscopic analysis data revealed the presence of Fe-O & M-O bands of respective divalentcationsof cubic spinel structure and absence or low levels of impurities of residual precursors.The XRD analysis results illustrated that the structures of ferrite materials are of cubic single spinel phase. Whereas,the data of AASanalysis indicated the presence of incorporated metallic species, their percentages were found consistent with the empirical formula of normal spinel ferrite MIIFe2O4. This formula is considered the most common form of ferrites of typical spinel structures.