Ferromagnetic and photocatalytic properties of pure BiFeO3 powders synthesized by ethylene glycol assisted hydrothermal method

Structural and optical properties of Ce doped BiFeO 3 nanoparticles via sol–gel method

“…4, BiFeO 3 nanoparticles with ten Raman vibration modes, which is consistently well with the report by Zhiwu Chen earlier, all less than the theoretical value, it may due to Raman peak too weak or Raman peak overlap, etc. [21]. Stronger for three of the vibration frequency, A 1 −1 A 1 −2 and A 1 −3 vibration modes, which appeared in the 136, 168, 219 cm −1 , and the relatively weak vibration mode A 1 −4 is located at 452 cm −1 .…”

Microwave-Assisted Hydrothermal Synthesis of BiFexCr1–xO3 Ferroelectric Thin Films

“…As the A 2 modes are Raman-inactive, the BiFe x Cr 1– x O 3 phase can be represented by 13 Raman modes (4 A 1 + 9 E ), but only a fraction of them is usually observed at room temperature. The Raman spectra of the BiFe x Cr 1– x O 3 powders show peaks at 84, 139, 210, 259, and 350 cm –1 , which are characteristic of the BiFe x Cr 1– x O 3 phase. − The two peaks at 139 and 210 cm –1 correspond to the A 1 (LO) modes of the Bi–O bond, the peaks at 259 and 350 cm –1 are related to the different E ( TO ) modes of the Fe–O bonds, and the peak that appears at ∼825 cm –1 corresponds to the Cr–O bond. , Apart from BiFe x Cr 1– x O 3 , no other phases such as Bi 2 O 3 , Fe 2 O 3 , or any other Bi compound were observed. As the number of cycle increases, we can see that the peaks become wider and less defined, indicating lower crystallinity.…”

Bismuth–iron-based precursor: preparation, phase composition, and two methods of thermal treatment

“…In the past decade, BiFeO 3 nanoparticles (NPs) with different morphologies have been prepared, including nanospheres, 9 micro 10 /nanorods, 11 nanowires, [12][13][14] nanotubes, 15 and micro 16 / nanoplates. 17 Among the many synthesis methods for BiFeO 3 NPs, the hydrothermal method 11,14,[18][19][20][21][22][23][24][25][26][27] is the most widely accepted and used. In addition, V. A. Reddy et al 28 prepared nano-crystalline BiFeO 3 samples using the spray pyrolysis method.…”