MoS₂ thin nanosheets decorated with CoFe₂O₄ nanoparticles have been successfully synthesized via a simple hydrothermal method. The nanocomposites are characterized by XRD, TEM, HRTEM, BET, XPS, UV–Vis DRS, PL and magnetic property analysis. The Z-scheme mechanism at the interface of MoS₂ and CoFe₂O₄ is formed. When the mass ratio of MoS₂ and CoFe₂O₄ is 1:3, the MoS₂/CoFe₂O₄ nanocomposites present excellent photocatalytic performance. The degradation rate of rhodamine B (RhB) and congo red (CR) is 93.80% and 94.43% in 90 and 50 min, respectively, under visible light irradiation. The highly photocatalytic activity could be mainly ascribed to the formed Z-scheme mechanism which facilitates the separation of photoinduced electron-hole pairs. Besides, the MoS₂ thin nanosheets not only provide the most active sites for photocatalytic reactions, but also act as the backing material for CoFe₂O₄ nanoparticles to effectively disperse and avoid the magnetic aggregation. Moreover, the MoS₂/CoFe₂O₄ nanocomposites present a good recyclability and the degradation rate of RhB and CR is still beyond 82% after seven runs. In addition, the nanocomposites can be easily separated by an external magnet.

已经通过简单的水热方法成功地合成了用CoFe ₂ O ₄纳米颗粒装饰的MoS ₂纳米薄板。纳米复合材料的特征在于XRD，TEM，HRTEM，BET，XPS，UV-Vis DRS，PL和磁性能分析。在MoS ₂和CoFe ₂ O ₄的界面处形成Z机理。当MoS ₂与CoFe ₂ O ₄的质量比为1：3时，MoS ₂ / CoFe ₂ O ₄纳米复合材料具有出色的光催化性能。在可见光照射下，若丹明B（RhB）和刚果红（CR）在90和50分钟内的降解率分别为93.80％和94.43％。高度的光催化活性可能主要归因于所形成的Z方案机制，该机制促进了光致电子-空穴对的分离。此外，MoS ₂薄纳米片不仅为光催化反应提供了最活跃的位置，而且还充当了CoFe ₂ O ₄纳米粒子的支撑材料，从而有效地分散并避免了磁性聚集。此外，MoS ₂ / CoFe ₂ O ₄纳米复合材料具有良好的可回收性，经过7次运行后，RhB和CR的降解率仍超过82％。另外，纳米复合材料可以容易地通过外部磁体分离。