The present study aimed to investigate the effect of calcination temperature on the physical properties and photocatalytic activity potassium ferrate nanostructure as an adsorbent for organic dyes under visible light. The samples were synthesized using thermal treatment method based on the structural formula K₂FeO₄ at a temperature ranging from 350, 450 and 550 °C, and physical and structural properties of nanostructures were investigated using different characterization techniques. The dye was removed from aqueous solution via potassium ferrate nanostructure oxidation, and the samples were individually exposed to UV radiation. During the mechanism for MB degradation, hydroxyl radicals and photo-hole (h⁺) were found to contribute to the MB decay. Based on the results, the presence of H₂O₂ was not so effective, while H₂O₂ accelerated the photodegradation. Finally, the results of photocatalytic activity test using a solution of Methylene Blue reveal that the highest photocatalyst efficiency was achieved by potassium ferrate nanostructures in the absence of H₂O₂, which is calcined at a temperature of 350 °C and after the irradiation for 180 min, with 76.42% in the optimum concentration of 10 mg/l.

本研究旨在研究煅烧温度对高铁酸钾纳米结构作为可见光下有机染料吸附剂的物理性质和光催化活性的影响。样品采用基于结构式 K ₂ FeO _{4 的}热处理方法在350、450和 550 °C 的温度范围内合成，并使用不同的表征技术研究了纳米结构的物理和结构特性。通过高铁酸钾纳米结构氧化从水溶液中去除染料，并将样品单独暴露于紫外线辐射。在 MB 降解机制中，羟基自由基和光孔 (h ⁺) 被发现有助于 MB 衰减。根据结果​​，H ₂ O ₂的存在不是那么有效，而H ₂ O ₂加速了光降解。最后，使用亚甲蓝溶液进行光催化活性测试的结果表明，在不存在 H ₂ O ₂的情况下，高铁酸钾纳米结构实现了最高的光催化效率，在 350 °C 的温度下煅烧并在辐照后180 分钟，在 10 毫克/升的最佳浓度下为 76.42%。