Integrating MoS2 on sulfur-doped porous g-C3N4 iostype heterojunction hybrids enhances visible-light photocatalytic performance

MoS 2 /S-doped porous g-C 3 N 4 (MoS 2 /SPGCN) hybrids were fabricated via a facile calcination and ultrasound assembly method. Structural characterization indicated MoS 2 nanosheets were successfully loaded on SPGCN isotype heterojunction hybrids. The MoS 2 /SPGCN photocatalysts showed more visible light absorption, larger specific surface area, and faster electron-hole separation. MoS 2 /SPGCN significantly accelerated Rhodamine B photodegradation under visible light irradiation, which was mainly because the enriched active sites, broadened visible light absorption, and newly-formed heterojunction between MoS 2 nanosheets and SPGCN together suppressed the recombination of photoinduced electron-hole pairs. MoS 2 /SPGCN also showed excellent recyclability and chemical stability. Thus, this work presents a good strategy of designing efficient photocatalysts by substituting the single catalyst base with metal-free isotype heterojunction hybrids.