It has high capacity of storing and
transporting electrons [8]. Many researchers attempted to improve
the photocatalytic activity via the combination of ZnO with graphene.
The inclusion of graphene with semiconductor can boost
the lifetime and transfer of charge carriers in the graphenesemiconductor
photocatalysts [9]. Further, ZnO with graphene can
enhance the photoactivity and anti-photocorrosion of semiconductor
ZnO [10]. The combination of graphene-single semiconductor
with metal (additional functional component) yields
photocatalytic composite with multilevel/route electron transfer
[11]. Improved photocatalytic performance can be expected from
multi-component hybrid nanomaterials because of their extraordinary
composite properties due to an integrative combination
of individual components [12].