Hollow-ZIF-templated formation of a ZnO@C–N–Co core–shell nanostructure for highly efficient pollutant photodegradation

A novel ZnO@C–N–Co core–shell nanostructure was successfully prepared by the direct pyrolysis of a hollow Zn/Co–ZIF matrix, which showed a significantly improved performance for the model pollutant photodegradation due to the highly synergistic effects from C–N–Co shell and ZnO core.