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.

中文翻译：

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轻松合成空心p-Cu ₂ O / n-ZnO微球，并增强H _2的产生

通过一种简便的一步水热法制备了具有新型空心微球的Cu ₂ O / ZnO异质结。加入乙酸锌后，形态从八面体显着改变为空心微球。微球体Cu ₂ O / ZnO材料表现出优异的光催化氢产率（129.6μmol/ g），几乎是纯Cu ₂ O的10.3倍。由于ZnO之间形成了pn异质结，有效促进了光生电子-空穴对的分离和Cu ₂ O.另外，Cu的中空结构和壳渗透性₂ O /氧化锌微球，也可以提高可见光的利用率。