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<p>The development of sustainable synthesis routes for multifunctional perovskite oxides is a key challenge in materials science. This study presents a facile and eco-friendly green synthesis of samarium ferrite (SmFeO<sub>3</sub>) nanoparticles using lemon juice as a biofuel and complexing agent. This innovative approach achieves pure and well-crystallized SmFeO<sub>3</sub> at a reduced calcination temperature of 800&#xa0;°C, offering substantial energy and economic benefits over conventional methods. The characterization of the ferrite confirms the formation of well-crystallized perovskite with a homogeneous distribution of spherical nanoparticles averaging 58&#xa0;nm in size. The synthesized material exhibits compelling functional properties, including room-temperature canted antiferromagnetism and characteristic Sm<sup>3+</sup> photoluminescence emission. Notably, the spectral features reveal a strong magneto-optical coupling, indicating an interaction between the Fe<sup>3+</sup> magnetic sublattice and the Sm<sup>3+</sup> optical centers. These findings demonstrate that the adopted approach is a sustainable alternative to traditional chemical routes. It produces high-purity SmFeO<sub>3</sub> nanoparticles with good structural, magnetic, and optical properties. Therefore, they are promising for advanced applications in spintronics and magneto-optical devices.</p>

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Sustainable lemon juice-driven synthesis of SmFeO3 perovskite nanoparticles with optical and magnetic functionality

  • 期刊论文

  • 发表日期：

    2026年5月12日

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  • Amani Mechi,
  • Refka Andoulsi-Fezei,
  • Anis Elaoud,
  • Mohamed Abd Al Raheem Abu-Saied,
  • Karima Horchani-Naifer,
  • Mounir Ferhi

摘要

The development of sustainable synthesis routes for multifunctional perovskite oxides is a key challenge in materials science. This study presents a facile and eco-friendly green synthesis of samarium ferrite (SmFeO3) nanoparticles using lemon juice as a biofuel and complexing agent. This innovative approach achieves pure and well-crystallized SmFeO3 at a reduced calcination temperature of 800 °C, offering substantial energy and economic benefits over conventional methods. The characterization of the ferrite confirms the formation of well-crystallized perovskite with a homogeneous distribution of spherical nanoparticles averaging 58 nm in size. The synthesized material exhibits compelling functional properties, including room-temperature canted antiferromagnetism and characteristic Sm3+ photoluminescence emission. Notably, the spectral features reveal a strong magneto-optical coupling, indicating an interaction between the Fe3+ magnetic sublattice and the Sm3+ optical centers. These findings demonstrate that the adopted approach is a sustainable alternative to traditional chemical routes. It produces high-purity SmFeO3 nanoparticles with good structural, magnetic, and optical properties. Therefore, they are promising for advanced applications in spintronics and magneto-optical devices.