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Effect of aluminum substitution on physical–chemical properties of novel iron-sillenite Bi25Fe(1−x)AlxO40 (x = 0.00, 0.20, 0.50)

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Abstract

Novel Sillenites Bi25Fe(1−x)AlxO40 (x = 0.00, 0.20, and x = 0.50) have been synthesized using the SSR method. In this paper, the effect of Al-substitution on the physicochemical properties was performed. The X-ray diffraction analysis as well as both Raman and FT-IR spectroscopies indicate that all the elaborated materials have a bcc structure with the I23 space group. The increase of the cell parameters, the morphological features, and thus the decrease of the grain size with Aluminum content is also evidenced via the X-ray patterns and SEM microscopy. DSC measurements highlighted the occurrence of various phenomena related to both structural and dielectric features. The temperature dependence of electrical conductivity and the deduced activation energies pointed to the effect of temperature on the conduction process. The impedance analysis on the samples confirms the onset of relaxation phenomenon in the sample with semiconducting behavior. Furthermore, an AFM-Paramagnetic transition for x = 0.00 and 0.20, with Neel temperatures of 268 and 265 K, respectively. Otherwise, paramagnetic behavior is observed for x = 0.50. The optical measurements make these materials suitable candidates for photocatalysis and optoelectronic applications.

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Acknowledgements

M. Boujnah is grateful to CONACYT for the postdoctoral fellowship.

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Authors and Affiliations

  1. Laboratory of Condensed Matter and Interdisciplinary Sciences, Unite de Recherche Labialisées CNRST, URL-CNRST-17, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco

    H. Jebari, A. El Mansouri, N. Tahiri, O. El Bounagui & H. Ez-Zahraouy

  2. Laboratory of Physics and Chemistry of Inorganic and Organic Materials (LPCMIO), Materials Science Research Center, Ecole Normale Supérieure, Mohammed V University in Rabat, Rabat, Morocco

    L. Boudad & M. Taibi

  3. Centro de Investigación y de Estudios Avanzados del I.P.N. Unidad Querétaro, Libramiento Norponiente 2000, 76230, Santiago de Querétaro, Querétaro, Mexico

    M. Boujnah

  4. Nanomaterials, Energy and Environment Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco

    A. El Mansouri

  5. Higher Institute of Audiovisual and Film Professions, Rabat, Morocco

    A. El Mansouri

  6. Advanced Systems Engineering Laboratory, National School of Applied Sciences, Ibn Tofail University, Kenitra, Morocco

    H. Labrim

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HJ: investigation, writing the draft, writing—review and editing, literature analysis, LB: investigation, writing—review and editing, MT: writing—review and editing; project administration, validation, MB: review and editing, AEM: review and editing, HL: review and editing, NT: review and editing, OEB: review and editing, HE: review and editing; project administration, supervision, and validation.

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Jebari, H., Boudad, L., Taibi, M. et al. Effect of aluminum substitution on physical–chemical properties of novel iron-sillenite Bi25Fe(1−x)AlxO40 (x = 0.00, 0.20, 0.50). Appl. Phys. A 130, 190 (2024). https://doi.org/10.1007/s00339-024-07317-w

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