A homojunction–heterojunction–homojunction scaffold boosts photocatalytic H2 evolution over Cd0.5Zn0.5S/CoO hybrids

A hybrid photocatalyst was constructed based on twin crystal Cd_0.5Zn_0.5S 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.