In recent years, increased discharge of toxic effluents into water bodies has severely harmed ecosystems and human well-being. Various techniques are employed to remove contaminants, among which photocatalysis have proven to be the most environment friendly and effective technique. This review focuses on MgFe₂O₄, an exceptional photocatalyst owing to their small band gap, spherical shape, magnetic responsivity, stability, reusability, cost-effectiveness and small crystallite size. We have covered comprehensive comparison of research studies from the past decade to assess. Magnesium ferrite's photocatalytic potential in pure, doped, and composite forms. Along with synthesis methods, degradation mechanisms, and shortcomings explained in detail. Furthermore, we have highlighted the enhanced photocatalytic capability of doped MgFe₂O₄ and their nanocomposites towards the various organic contaminants upon visible light irradiation under a comparatively short period of time. Factors like cation distribution, dosage, pH, as well as methods for recovery and reuse are discussed to aid in production of more efficient photocatalysts. There has been a lack of information on the techniques that can be used to overcome the various shortcomings of MgFe₂O₄ ferrite. Hence, we have accentuated on bringing forth such advanced techniques that would aid in driving the researchers’ attention towards the practical and industrial application of the hybrid MgFe₂O₄ nanoparticles. Lastly, the research gaps and industrial need of MgFe₂O₄ ferrite-based materials were addressed to offer a concise view.

中文翻译：

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基于镁铁氧体及其复合材料的光催化剂：合成方法、掺杂的影响和操作参数对废水修复光催化性能的影响


近年来，有毒污水排放到水体中的增加严重危害了生态系统和人类福祉。采用各种技术来去除污染物，其中光催化已被证明是最环保和最有效的技术。本文重点介绍了 MgFe₂O₄，这是一种特殊的光催化剂，因为它们的带隙小、球形、磁响应性、稳定性、可重用性、成本效益和小晶粒尺寸。我们已经对过去十年的研究进行了全面比较以进行评估。镁铁氧体在纯、掺杂和复合形式的光催化电位。连同合成方法、降解机制和缺点 详细解释。此外，我们强调了掺杂 MgFe₂O₄ 及其纳米复合材料在相对较短的时间内在可见光照射下对各种有机污染物的增强光催化能力。讨论了阳离子分布、剂量、pH 值以及回收和再利用方法等因素，以帮助生产更高效的光催化剂。一直缺乏关于可用于克服 MgFe₂O₄ 铁氧体各种缺点的技术的信息。因此，我们强调推出此类先进技术，这将有助于推动研究人员关注杂化 MgFe₂O₄ 纳米颗粒的实际和工业应用。最后，解决了 MgFe₂O₄ 铁氧体基材料的研究空白和工业需求，以给出简洁的观点。