S-Scheme System of MoS2/Co3O4 Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methyl Violet Dye Removal under Visible Light Irradiation

Photocatalytic hydrogen production joined with simultaneous organic compound removal is a potential but challenging approach for both environmental modification and reusable energy generation. In this study, we designed nanocomposite method the fabrication of MoS2/Co3O4 heterojunction an extremely productive photocatalytic capability. The as-fabricated nanocomposites displayed greatly enhanced (3825 ?mol/g/h) methyl violet dye (MV) contaminant (apparent kinetic constant 0.038 min?1) activity. nanocomposites’ structures had better specific surface area, numerous active sites, transport ability charge carriers to promote increase in Co3O4 improved visible-light absorption efficiency narrowed bandgap served as highway facilitate transfer separation inhibit combination photoinduced carriers. migration route photoexcited charges, formation pathway, function various reactive oxygen species (such O2? •OH) are discussed. optimized band structure high electron rate S-scheme promotes evolution H2 pollutants, which shows excellent stable efficient environment remediation.