In-situ synthesis of CuO/Fe₃O₄ nano-composite from Cu-Fe based Prussian Blue Analogues (PBA) by using as a precursor is reported. CuO/Fe₃O₄ catalyst was practiced as a heterogeneous catalyst, by activating persulfate (PS), for the photo-decomposition of different azo dyes (RhB, MO, CR) under visible light. CuO/Fe₃O₄ catalyst has validated its excellent photocatalytic removal of all three organic dyes. Synergistic linkage of Fe₃O₄ with CuO has enhanced the light absorption of CuO/Fe₃O₄ catalyst resulting in excellent photocatalytic removal of all pollutants under various pH systems amongst which neutral pH was found the efficient one. ESR and radicals capturing studies revealed that SO₄^•− and HO^• radicals are dominant ones. The mechanism and the reaction pathway for the decomposition of RhB were also identified. Excellent recycling and stability of as-prepared bimetallic catalyst make it highly favorable, as its application for the removal of organic pollutants to address health remediation and environmental toxicology.

报道了通过使用Cu-Fe基普鲁士蓝类似物（PBA）作为前体原位合成CuO / Fe ₃ O ₄纳米复合材料。通过活化过硫酸盐（PS），CuO / Fe ₃ O ₄催化剂被用作非均相催化剂，用于在可见光下光解不同的偶氮染料（RhB，MO，CR）。CuO / Fe ₃ O ₄催化剂已验证了其对所有三种有机染料的出色光催化去除性能。Fe ₃ O ₄与CuO的协同连接增强了CuO / Fe ₃ O ₄的光吸收这种催化剂可在各种pH体系下对所有污染物进行出色的光催化去除，其中发现中性pH是有效的。ESR和自由基捕获研究表明，SO ₄ ^•−和HO ^•自由基是主要自由基。还确定了RhB分解的机理和反应途径。所制备的双金属催化剂具有出色的循环利用性和稳定性，因此非常有利，因为它可用于去除有机污染物，以解决健康问题和环境毒理学问题。