LOW TEMPERATURE SYNTHESIS AND CHARACTERIZATION OF BISMUTH FERRITE (Bi2Fe4O9) NANOPARTICLES BY USING HYDROTHERMAL METHOD

Bi2Fe4O9 (BFO) is a promising inorganic material having a perovskite structure. The study demonstrated the Preparation of Bi2Fe4O9 nanoparticles by hydrothermal method at low temperature. The influence of alkali concentration on BFO was also investigated. The high alkali concentration of the Na+ ions had a vital role in the production of the bismuth ferrite nanoparticles at low Temperature. Pure BFO nanoparticles were obtained by high alkali concentration. The Bi2Fe4O9 nanoparticles thus formed were then characterized by the aid of Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) analysis. UV spectroscopy was performed to study the absorption spectrum and band gap was calculated. XRD described the entire crystal structure of the prepared nanoparticles. The average size of prepared nanoparticles found to be decrease by increasing the concentrations of the initial precursors. The observed peaks have shown perovskite orthorhombic structure and belongs to space group pbam The SEM was performed to study the composition and morphology of the nano particles an well agglomerated and flower like nanoparticles were obtained.