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The single-phase BiFeO3 powders were prepared by sol-gel method with the starting materials of bismuth nitrate and ferric nitrate, and the effect of the calcined temperature on the phases of BiFeO3 samples was studied. The x-ray diffraction (XRD)showed that the single-phase BiFeO3 powders were obtained with a calcined temperature of 700 ℃. The scanning electron microscope(SEM)analysis indicated that the grain size was around 500 nm in single-phase BiFeO3 powders, and uniform particle size distribution. The FT-IR spectra showed that the BiFeO3 powders began to crystallize at 500℃.
The single-phase BiFeO3 powders were prepared by sol-gel method with the starting materials of bismuth nitrate and ferric nitrate, and the effect of the calcined temperature on the phases of BiFeO3 samples was studied. The x-ray diffraction (XRD) showed that the single-phase BiFeO3 powders were obtained with a calcined temperature of 700 ° C. The scanning electron microscope (SEM) analysis showed that the grain size was around 500 nm in single-phase BiFeO3 powders, and uniform particle size distribution. The FT- IR spectra showed that the BiFeO3 powders began to crystallize at 500 ° C.