A homojunction–heterojunction–homojunction scaffold boosts photocatalytic H ₂ evolution over Cd 0.5 Zn 0.5 S/CoO hybrids

A hybrid photocatalyst was constructed based on twin crystal Cd 0.5 Zn 0.5 S with a homojunction containing M-CoO as the co-catalyst. The homojunction containing M-CoO is proved to be a more efficient co-catalyst than its pure phase counterparts.