Microwave-assisted synthesis of perovskite ReFeO3 (Re: La, Sm, Eu, Gd) photocatalyst

Self-propagating combustion synthesis and synergistic photocatalytic activity of GdFeO3 nanoparticles

“…Depending on the Kubelka-Munk formula [29], the relationship between the absorption coefficient and the band-gap energy follows the formula: (F(R)E) n/2 = A(E -E g ), in which E and E g are photon energy and optical band-gap energy, respectively, and A is the characteristic constant of semiconductors. From the [13], So n = 4. The inset of Fig.…”

“…They generally crystallize in the orthorhombic perovskite structure in which the FeO 6 octahedra get distorted to the extent decided by the size of rare-earth ions. They have potential for various applications such as solid oxide fuel cells, sensors, magnetooptic materials, electrode materials, catalysts, and magnetic resonance imaging (MRI) in biomedicine [12][13][14][15]. Recently, rare-earth orthoferrite compounds with perovskite structure [16][17][18][19], such as SmFeO 3 , LaFeO 3 , GdFeO 3 , EuFeO 3 , NdFeO 3 , PrFeO 3 , and YFeO 3 , have received increasing attention and been applied as photocatalysts.…”

Structural, thermal, 57Fe and 151Eu Mössbauer studies of Eu2O3–Fe2O3 ceramic nanostructures

“…The sextets correspond to Eu-doped hematite and the small doublet suggests the presence of very fine hematite particles in the system. It should be noted that the europium orthoferrite phase is associated with a doublet in [6], but a sextet or both a sextet and a doublet in [5], depending on the procedure of system preparation [16][17][18][19][20][21][22]. The spectrum in Fig.…”

Magnetic and dielectric properties of orthoferrites La1−x PrxFeO3 (x = 0, 0.1, 0.2, 0.3, 0.4 and 0.5)

“…They have also been used in data storage device due to their antiferromagnetic properties with N eel temperature ranging from 620 K to 740 K [7]. Ding et al have reported the photo-catalytic activity of RFeO 3 (R ¼ La, Sm, Eu, Gd) synthesized by microwave-assisted technique [8]. These materials exhibit interesting magnetic and spin reorientation properties [9] along with ionic and electric defects [10].…”