In previous years, cobalt ferrite has gained huge consideration in the field of semiconductor photocatalysis for waste water treatment. Cobalt ferrite and its derivatives own tunable magnetic properties which results in higher absorption capability in comparison with other photocatalyst semiconductors. In the current review, a brief overview of CoFe₂O₄ as a semiconductor photocatalyst is presented and ferromagnetic behaviour of CoFe₂O₄ is also discussed. Few drawbacks such as agglomeration, photocorrosion and recombination rate of electrons-holes are also discussed. For the enhancement of photocatalytic action of cobalt ferrite, the role of cobalt ferrite with type I, type II, direct Z-scheme, solid state Z-scheme heterojunctions, Schottky and p-n heterojunctions based on different heterostructures were also discussed. In conclusive outlook formation of cobalt ferrite based heterojunctions is best approach for the enhancement of photocatalytic performance. This is because heterojunction formation enhanced the rate of charge separation and thus reduced the electron–hole recombination. Herein, this review highlights the CoFe₂O₄ based heterojunctions for the photodegradation of noxious organic pollutants in water. Furthermore, the future expectations and challenges in exploiting CoFe₂O₄ nanocomposites for water treatment, also discussed in precise conclusion of this review.

近年来，钴铁氧体在半导体光催化废水处理领域得到了广泛的考虑。铁氧体钴及其衍生物具有可调节的磁性，与其他光催化剂半导体相比，具有更高的吸收能力。在目前的审查，由CoFe组成的简要概述₂ ö ₄作为半导体光催化剂，提出和由CoFe组成铁磁行为₂ ö ₄也进行了讨论。还讨论了一些缺陷，如电子空穴的团聚，光腐蚀和复合率。为了增强钴铁氧体的光催化作用，还讨论了基于不同异质结构的I型，II型，直接Z型，固态Z型异质结，肖特基和pn异质结的钴铁氧体的作用。从结论来看，形成基于钴铁氧体的异质结是增强光催化性能的最佳方法。这是因为异质结的形成提高了电荷分离的速率，从而减少了电子-空穴的复合。在此，本文将重点介绍CoFe ₂ O ₄异质结用于光降解水中的有害有机污染物。此外，在这篇综述的精确结论中还讨论了利用CoFe ₂ O ₄纳米复合材料进行水处理的未来期望和挑战。