Ferrite nanoparticles are promising materials in various fields due to their unique magnetic and chemical stability, remarkable utilization in photocatalytic degradation, and ionizing radiation attenuation properties. So, in the present work, M0.45La0.1Fe1.45O4 (M = Zn, Mn, Cu, and Co) ferrite nanoparticles (MLF nanoparticles) have been explored as a means for improving optical, photocatalytic degradation, reusability, and ionizing radiation attenuation properties. The obtained optical band gaps are 2.44 ± 0.01 eV, 2.20 ± 0.01 eV, 1.93 ± 0.01 eV and 1.70 ± 0.01 eV for the CuLF, ZnLF, CoLF, and MnLF, respectively. The optical band gaps of all the MLF nanoparticles lie within the visible range, indicating their potential as photocatalysts under visible light. The MnLF nanoferrite shows the best degrading efficiency at 97.29 % for methylene blue dye with outstanding stability and enhanced recyclability. In addition, according to the gamma-ray attenuation characteristics of the MLF nanoparticles, the sample ZnLF shows a promising ability for radiation attenuation due to its higher mass attenuation coefficient in comparison with the mass attenuation coefficient of the other MLF nanoparticles. Also, the ZnLF sample has the highest effective atomic number, and this is due to the high atomic number of Zn element in comparison with the other MLF nanoparticles.

中文翻译：

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阐明不同二价金属（Mn、Co、Cu 和 Zn）对镧铁氧体纳米颗粒的光学、光催化降解、可重用性和电离辐射衰减性能的影响


铁氧体纳米颗粒因其独特的磁性和化学稳定性、在光催化降解方面的显着利用以及电离辐射衰减性能而成为各个领域的有前途的材料。因此，在本工作中，已经探索了 M0.45La0.1Fe1.45O4 （M = Zn、Mn、Cu 和 Co） 铁氧体纳米颗粒 （MLF 纳米颗粒） 作为改善光学、光催化降解、可重用性和电离辐射衰减性能的手段。CuLF、ZnLF、CoLF和MnLF获得的光带隙分别为2.44 ± 0.01 eV、2.20 ± 0.01 eV、1.93 ± 0.01 eV和1.70 ± 0.01 eV。所有 MLF 纳米颗粒的光学带隙都在可见光范围内，表明它们在可见光下作为光催化剂的潜力。MnLF 纳米铁氧体对亚甲基蓝染料的降解效率最高，为 97.29%，具有出色的稳定性和增强的可回收性。此外，根据 MLF 纳米颗粒的伽马射线衰减特性，样品 ZnLF 与其他 MLF 纳米颗粒的质量衰减系数相比，由于其更高的质量衰减系数，显示出有前途的辐射衰减能力。此外，ZnLF 样品具有最高的有效原子序数，这是由于与其他 MLF 纳米颗粒相比，Zn 元素的原子序数较高。