Visible-light-responsive
photocatalytic materials have a multitude
of important applications, ranging from energy conversion and storage
to industrial waste treatment. Molybdenum disulfide (MoS
2
) and its variants exhibit high photocatalytic activity under irradiation
by visible light as well as good stability and recyclability, which
are desirable for all photocatalytic applications. MoS
2
-based materials have been widely applied in various fields such
as wastewater treatment, environmental remediation, and organic transformation
reactions because of their excellent physicochemical properties. The
present review focuses on the fundamental properties of MoS
2
, recent developments and remaining challenges, and key strategies
for tackling issues related to the utilization of MoS
2
in
photocatalysis. The application of MoS
2
-based materials
in visible-light-induced catalytic reactions for the treatment of
diverse kinds of pollutants including industrial, environmental, pharmaceutical,
and agricultural waste are also critically discussed. The review concludes
by highlighting the prospects of MoS
2
for use in various
established and emerging areas of photocatalysis.