Nano-CuO have been grown on the surface of CdS nanorods by a simple solution-phase reaction, which greatly enhanced the hydrogen evolution ability of CdS. The physical chemistry properties of CuO/CdS nanocomposites were investigated by XRD, SEM, TEM, BET, XPS and electrochemical methods. The morphology and crystal structure of CdS were not influenced by the loading of Nano-CuO. And it was helpful to delay the time of electron recombination to the hole, and greatly improved the hydrogen evolution performance of CdS. When the loading of Nano-CuO was 1 wt%, the photocatalytic performance of CdS increases from 105 μmol g⁻¹ h⁻¹ to 3317.5 μmol g⁻¹ h⁻¹. After several cycles, the structure of CuO/CdS nanocomposites was not changed, and Nano-CuO could effectively prevent the photo-corrosion defects of CdS. This work provides a new way to improve the hydrogen evolution performance of CdS by growing nano-oxide on CdS surface.

通过简单的溶液相反应在 CdS 纳米棒表面生长了纳米 CuO，大大增强了 CdS 的析氢能力。通过XRD、SEM、TEM、BET、XPS和电化学方法研究了CuO/CdS纳米复合材料的物理化学性质。CdS的形貌和晶体结构不受纳米CuO负载量的影响。并且有助于延迟电子复合到空穴的时间，大大提高了CdS的析氢性能。当纳米CuO的负载量为1 wt%时，CdS的光催化性能从105 μmol g ^-1 h ^{-1 提高}到3317.5 μmol g ^-1 h ^-1. 经过多次循环后，CuO/CdS纳米复合材料的结构没有发生变化，Nano-CuO可以有效地防止CdS的光腐蚀缺陷。这项工作提供了一种通过在 CdS 表面生长纳米氧化物来提高 CdS 析氢性能的新方法。