Synthesis of Hollow CdxZn1−xSe Nanoframes through the Selective Cation Exchange of Inorganic–Organic Hybrid ZnSe–Amine Nanoflakes with Cadmium Ions

Tiny frames: The selective cation-exchange of unpurified ZnSe–diethylenetriamine (DETA) hybrid nanosheets with cadmium ions, followed by the dissolution of DETA and subsequent Ostwald ripening, leads to hollow CdxZn1−xSe nanoframes with tunable compositions (see scheme). These nanoframes are highly active in the photocatalytic hydrogen evolution from water-splitting.