Synthesis and photocatalytic activity of mesoporous g-CN/MoS hybrid catalysts.

The key to solving environmental and energy issues through photocatalytic technology requires highly efficient, stable and eco-friendly photocatalysts. Graphitic carbon nitride (g-CN) is one of the most promising candidates except for its limited photoactivity. In this work, a facile and scalable one-step method is developed to fabricate an efficient heterostructural g-CN photocatalyst coupled with MoS. The strong coupling effect between the MoS nanosheets and g-CN scaffold, numerous mesopores and enlarged specific surface area helped form an effective heterojunction. As such, the photocatalytic activity of the g-CN/MoS is more than three times higher than that of the pure g-CN in the degradation of RhB under visible light irradiation. Improvement of g-CN/MoS photocatalytic performance is mainly ascribed to the effective suppression of the recombination of charge carriers.