In this study, we investigate the impact of chromium (Cr) incorporation on the optical properties, photocatalytic degradation efficiency, and radiation attenuation capabilities of zinc-copper-chromium () spinel nanoferrites. The energy gap () of the ferrite nanoparticles was determined using the Kubelka-Munk function, derived from reflectance data and analyzed through Tauc's plots. The values for the nanoferrites , , , , , and were found to be 2.205, 2.182, 1.952, 2.148, 2.214, and 2.140 eV, respectively. Our analysis, with a specific focus on the photocatalytic degradation capacity, revealed that nanoferrite outperformed other materials in methylene blue dye removal, achieving an impressive 96.93% efficiency within just 120 min. Furthermore, these nanoferrites displayed remarkable stability during multiple cycles of photocatalytic degradation. The study also explored the linear attenuation coefficient (LAC) of -nanoferrite, showing increased LAC values with greater Cr content. The LAC values at 0.662 MeV increased from 0.292 to 0.371 cm as the Cr contents increased in the nanoferrite materials. Conversely, the half-value layer (HVL) decreased with greater chromium content. Comparing the HVL values of -nanoferrites with those of other radiation shielding materials highlights their potential as efficient radiation shields. Overall, this research proposes a novel approach to optimizing spinel nanomaterials for use in water treatment and radiation shielding applications.

中文翻译：

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Cr取代锌铜纳米铁氧体光催化降解稳定性和辐射屏蔽能力的增强


在本研究中，我们研究了铬（Cr）的掺入对锌-铜-铬（）尖晶石纳米铁氧体的光学性质、光催化降解效率和辐射衰减能力的影响。铁氧体纳米粒子的能隙 () 使用 Kubelka-Munk 函数确定，该函数源自反射率数据并通过 Tauc 绘图进行分析。纳米铁氧体 、 、 、 、 和 的值分别为 2.205、2.182、1.952、2.148、2.214 和 2.140 eV。我们的分析特别关注光催化降解能力，结果表明纳米铁氧体在亚甲基蓝染料去除方面优于其他材料，在短短 120 分钟内实现了令人印象深刻的 96.93% 的效率。此外，这些纳米铁氧体在多次光催化降解循环中表现出显着的稳定性。该研究还探讨了纳米铁氧体的线性衰减系数 (LAC)，结果表明 LAC 值随 Cr 含量的增加而增加。随着纳米铁氧体材料中 Cr 含量的增加，0.662 MeV 处的 LAC 值从 0.292 cm 增加到 0.371 cm 。相反，半值层（HVL）随着铬含量的增加而减少。将α-纳米铁氧体的 HVL 值与其他辐射屏蔽材料的 HVL 值进行比较，突显了它们作为有效辐射屏蔽的潜力。总的来说，这项研究提出了一种优化尖晶石纳米材料的新方法，用于水处理和辐射屏蔽应用。