Constructing CdSe/CoWO 4 S-scheme heterojunctions with tight interfacial electronic coupling for enhanced photocatalytic hydrogen evolution

A novel CdSe/CoWO 4 S-scheme heterojunction with strong electronic coupling was fabricated. The H 2 evolution rate was 3.1 and 381 times higher than those of pristine CdSe and CoWO 4 . This is attributed to charge separation and suppressed recombination.