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

Abstract

Herein, Co–MoS_x/CN photocatalysts were prepared by photodeposition using urea and ammonium tetrathiomolybdate as starting materials. The doping of the cocatalyst MoS_x 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.