A set of Co doped MoS₂ photocatalysts were prepared by hydrothermal method and are used in photocatalytic degradation of methylene blue. A high consistency of the photocurrents and photocatalytic MB degradation are found. The photocurrents in MoS₂ is improved greatly by Co doping, resulting in a high MB degradation up to 74% by 16% Co in molar ratio doped MoS₂. A higher or lower Co doping increase the out-of plane interaction in MoS₂, which reduces the active sites and the photocatlytic activity of these catalysts. The Co promotion in MoS₂ are efficient in both decreasing the interlayer Van der Waals force and increasing the electron generation and transfer, thus the photoefficiency of MoS₂.

通过水热法制备了一组Co掺杂的MoS ₂光催化剂，并将其用于亚甲基蓝的光催化降解。发现光电流和光催化MB降解的高度一致性。通过Co掺杂大大提高了MoS _2中的光电流，导致摩尔比掺杂MoS ₂达到16％Co时，MB降解率高达74％。较高或较低的Co掺杂会增加MoS _2中的平面外相互作用，从而降低这些催化剂的活性中心和光催化活性。共同促进的MoS ₂是有效的在两个减小层间的范德华力及增加电子产生和转移，从而硫化钼的光电效率₂。