Simultaneous S-scheme promoted Ag@AgVO/g-CN/CeVO heterojunction with enhanced charge separation and photo redox ability towards solar photocatalysis.

Photocatalytic removal of toxic contaminants is one of the emerging techniques for water remediation, but it suffers from low redox ability, charge recombination and poor light harvesting efficiency. The present work reports a simultaneous S-scheme promoted by CeVO/g-CN/Ag@AgVO. The formation of the S-scheme mechanism enhanced the generation of photogenerated carriers and also improved the redox ability of the electrons and holes in the reduction and oxidation photocatalysts.