In situ photodeposition of loaded Co-MoS_x for promoting visible-light g-C₃N₄ photocatalytic hydrogen production performance

Herein, Co-MoSx/CN photocatalysts were prepared by photodeposition using urea and ammonium tetrathiomolybdate as starting materials. The doping of the cocatalyst MoSx changed the electronic band structure of CN, shortened the band gap width, and exhibited excellent visible light response. Furthermore, the introduction of the transition metal Co not only forms a Co-Mo-S bond but also makes better use of the excess S2- generated by the decomposition of ammonium tetrathiomolybdate, resulting in more active sites and improving the utilization of raw materials.