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<p>In this paper wepresent the investigation of the luminescence, photocatalytic, magnetic, and structural properties of Eu<sub>1-<i>x</i></sub>Bi<sub><i>x</i></sub>Fe<sub>1-<i>y</i></sub>Mn<sub><i>y</i></sub>O<sub>3</sub> (0 ≤ <i>x</i> ≤ 0.8, 0 ≤ <i>y</i> ≤ 0.4) polycrystalline nanoparticles synthesized via the sol–gel method. Rietveld refinement of the room temperature (RT) powder X-ray diffraction pattern confirmed the presence of an orthorhombic crystal structure with the <i>Pnma</i> space group. From magnetic studies, the increase of magnetization is observed after Bi and Mn substitution up to (<i>x</i> = 0.4, (Bi) and <i>y</i> = 0.2 (Mn)) andthen adecrease in magnetization is noticed beyond(<i>x</i> = 0.4 and <i>y</i> = 0.2). A magnetization value of 3.1468 emu/g at an applied field of 20 K Oe, that is approximately twice that of the pure EuFeO<sub>3</sub>, is obtained for the sample (<i>x</i> = 0.4(Bi) and <i>y</i> = 0.2 (Mn)). After evaluating the photocatalytic activity of these materials, Eu<sub>1-<i>x</i></sub>Bi<sub><i>x</i></sub>Fe<sub>1-<i>y</i></sub>Mn<sub><i>y</i></sub>O<sub>3</sub> (0 ≤ <i>x</i> ≤ 0.4, 0 ≤ <i>y</i> ≤ 0.2) exhibited the best performance in photocatalytic applications. Additionally,the study revealed that local crystal field distortions create an environment conducive to photoluminescence in Eu<sup>3+</sup> ions. These synthesized nanoparticles exhibit a combination of desirable properties that make them promising candidates for a wide range of commercial applications, particularly in the fields of photocatalysis and optoelectronics.</p> Graphical Abstract <p></p>

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Exploration of the structural, magnetic, optical, and photocatalytic properties of Bi and Mn modified rare-earth orthoferrite EuFeO3 nanoparticles synthesized by the sol–gel method

  • 期刊论文

  • 发表日期：

    2025年10月14日

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  • Badimela Balaiah,
  • R. P. Vijayalakshmi

摘要

In this paper wepresent the investigation of the luminescence, photocatalytic, magnetic, and structural properties of Eu1-xBixFe1-yMnyO3 (0 ≤ x ≤ 0.8, 0 ≤ y ≤ 0.4) polycrystalline nanoparticles synthesized via the sol–gel method. Rietveld refinement of the room temperature (RT) powder X-ray diffraction pattern confirmed the presence of an orthorhombic crystal structure with the Pnma space group. From magnetic studies, the increase of magnetization is observed after Bi and Mn substitution up to (x = 0.4, (Bi) and y = 0.2 (Mn)) andthen adecrease in magnetization is noticed beyond(x = 0.4 and y = 0.2). A magnetization value of 3.1468 emu/g at an applied field of 20 K Oe, that is approximately twice that of the pure EuFeO3, is obtained for the sample (x = 0.4(Bi) and y = 0.2 (Mn)). After evaluating the photocatalytic activity of these materials, Eu1-xBixFe1-yMnyO3 (0 ≤ x ≤ 0.4, 0 ≤ y ≤ 0.2) exhibited the best performance in photocatalytic applications. Additionally,the study revealed that local crystal field distortions create an environment conducive to photoluminescence in Eu3+ ions. These synthesized nanoparticles exhibit a combination of desirable properties that make them promising candidates for a wide range of commercial applications, particularly in the fields of photocatalysis and optoelectronics.

Graphical Abstract