Z-Scheme MoS2/g-C3N4 heterojunction for efficient visible light photocatalytic CO2 reduction

Abstract

Z-Scheme MoS₂/g-C₃N₄ heterojunction photocatalysts were fabricated using a hydrothermal deposition procedure together with a calcination route, and then applied for CO₂ photoreduction. Experimental results indicated that the 10% MoS₂/g-C₃N₄ heterojunction displayed the best photocatalytic performance. Furthermore, the maximum CO yields of 58.59 μmol (g-cat)⁻¹ under 7 h-visible light irradiation was up to 2.94 times that of the unadulterated g-C₃N₄. The enhanced photocatalytic performance of 10% MoS₂/g-C₃N₄ catalyst was due to the favored visible light response, the efficient separation of photogenerated electron–hole pairs as well as its larger specific surface area.