Molybdenum Disulfide Based Composites and Their Photocatalytic Degradation and Hydrogen Evolution Properties

With the gradual aggravation of environmental pollution and energy shortage, both developing technology on non-pollution environmental restoration and exploring project on alternative clean energy have recently become a very important and quite urgent task. As one of the transition metal sulfides with layered structures similar to graphene, molybdenum disulfide (MoS2) has become a research hotspot in the field of photocatalytic environmental remediation and clean energy(hydrogen generation) due to its narrow band gap, high reaction activity of the edges, and ease of forming a composite structure with other substances. This paper mainly introduces the synthesis methods, photocatalytic degradation and hydrogen generation behaviors of the MoS2 and its composites. Detailed methodologies for the synthesis of semiconductor MoS2 and its composites, photocatalytic degradation activity of pollutants, photocatalytic hydrogen generation activity and the corresponding mechanisms are emphasized and illustrated by a great many of the typical examples. MoS2 and its composites have displayed many advantages including environment friendliness, low cost and high efficiency in photocatalytic degradation of pollutants and photocatalytic hydrogen production. As the bright future materials, MoS2 and its composites have a broad application prospect in the field of environmental restoration and clean energy with the further development of its general mechanism.