Supplementary material from "Synthesis and photocatalytic activity of mesoporous g-C₃N₄/MoS₂ hybrid catalysts"

Abstract

The key to solving environmental and energy issues through photocatalytic technology requires highly efficient, stable and eco-friendly photocatalysts. Graphitic carbon nitride (g-C₃N₄) 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-C₃N₄ photocatalyst in situ coupled with MoS₂. The strong coupling effect between the MoS₂ nanosheets and g-C₃N₄ scaffold, numerous mesopores and enlarged specific surface area helped form an effective heterojunction. As such, the photocatalytic activity of the g-C₃N₄/MoS₂ is more than three times higher than that of the pure g-C₃N₄ in the degradation of RhB under visible light irradiation. Improvement of g-C₃N₄/MoS₂ photocatalytic performance is mainly ascribed to the effective suppression of the recombination of charge carriers.