Abstract
The Cu2O/ZnO heterojunction with novel hollow microspheres was prepared via a facile one-step hydrothermal method. The morphology was significantly changed from octahedron to hollow microsphere after adding zinc acetate. The microsphere Cu2O/ZnO materials exhibited superior photocatalytic hydrogen yields (129.6 μmol/g), almost 10.3 times higher than pure Cu2O. The separation of photogenerated electron-hole pairs were effectively promoted due to the formation of p-n heterojunction between ZnO and Cu2O. In addition, the hollow structure and shell permeability of Cu2O/ZnO microsphere could also improve the utilization of visible light.
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