The effect of calcination conditions on structural and magnetic behavior of bismuth ferrite synthesized by co-precipitation method

Tuning the Structural and the Magnetic Properties of BiFeO3 Magnetic Nanoparticles

“…On the contrary, the desirable target phase of bismuth iron oxide (BiFeO 3 ) is dominant (PDF #71‐2494, olive‐colored lines) without any presence of bismuth oxides after 2 h annealing under Ar atmosphere at calcination temperature of 700 °C. It has been previously confirmed by several works that the pure BFO phase without any impurities and secondary phases could be obtained only when the calcination temperature is close to 700 °C.…”

“…Regarding the reference sample BFO6, the presence of bismuth oxide phases (Bi 2 O 3 : PDF #45-1344 and #51-1161, blue and green colors, respectively) is unavoidable as clearly shown with blue and green vertical lines, under spectra (Figure 2a), respectively. On the contrary, the desirable target phase of bismuth iron oxide (BiFeO 3 ) is dominant (PDF #71-2494, olive-colored lines) without any presence of bismuth oxides after 2 h annealing under Ar atmosphere at calcination temperature of 700 C. It has been previously confirmed by several works [1,27,43] that the pure BFO phase without any impurities and secondary phases could be obtained only when the calcination temperature is close to 700 C.…”

Photocatalytic activity and magnetic enhancements by addition of lanthanum into the BiFeO3 structure and the effect of synthesis method

“…2 illustrate the FTIR spectra of all as-synthesized nanoceramics in the wavenumber range of 400-4000 cm -1 . Two major peaks between 400-600 cm -1 correspond to the Fe-O stretching and O-Fe-O bending vibrations of perovskite FeO6 groups, which confirms the formation of BFO nanoparticles [11,49,50]. Between 1400-1650 cm -1 two peaks are observed which are related to the symmetry bending vibration of C-H or C-6 H2 [51].…”

Photocatalytic Degradation of Cefixime Trihydrate by Bismuth Ferrite Nanoparticles

“…BFO also possesses a small bandgap (2.5 eV), due to which it has attracted considerable attention for its photovoltaic performances [ 24 , 25 , 26 ], as well as in its applications as sensors, and in information storage and optoelectric devices [ 27 , 28 , 29 ]. Hence, the synthesis of BFO has been extensively studied using various methods such as co-precipitation [ 30 , 31 ], low-temperature synthesis [ 32 , 33 ], the sol-method [ 29 ], hydrothermal method [ 34 ], microwave hydrothermal method, solid-state reaction [ 35 , 36 ], rapid liquid-phase sintering technique [ 37 ], pulsed laser deposition [ 38 ], electro-spinning [ 39 ], magnetron sputtering [ 40 ], Pecchini method [ 41 ], mechanochemical synthesis [ 32 ], and combustion methods [ 29 , 42 ] to obtain BFO particles with destined morphologies. However, the combustion method is preferred over the other method due to various reasons such as simplicity, rapidity, and effectiveness in achieving fine and homogeneous nano-powders.…”