Precious metal-free hybrid photocatalysts with low cost and high efficiency of photocatalytic H₂ evolution are of great significance for clean energy. Herein, we report that oxygen-incorporation in Co₂P, a noble metal-free co-catalyst used for forming a hetero-structure photocatalyst CdS/o-Co₂P, greatly improves the efficiency and durability for photocatalytic hydrogen production from water. Regulating the kinetics of water reduction by different oxygen incorporation levels (determined by phosphorization time) was investigated to optimize the activity of photocatalytic H₂ evolution. The intimate interaction between the CdS nanorods and cocatalyst o-Co₂P enhances the separation of the photo-generated electron–hole pairs. Consequently, the optimal loading content of o-Co₂P is 5 wt% for CdS, phosphorization time is 80 min, giving a photocatalytic H₂ production rate of 184.48 mmol g⁻¹ h⁻¹, and the apparent quantum yield at 420 nm over CdS/o-Co₂P-5wt% reaches 22.17%. This study provides a simple method for constructing low cost and high performance photocatalysts, which enhance photocatalytic H₂ evolution.

低成本，高效率的光催化H ₂析出的无贵金属杂化光催化剂对清洁能源具有重要意义。在此，我们报道了在形成异质结构光催化剂CdS / o-Co ₂ P的无贵金属助催化剂Co ₂ P中掺入氧大大提高了从水中光催化制氢的效率和耐用性。研究了通过不同的氧掺入量（由磷化时间确定）调节减水动力学，以优化光催化H ₂析出的活性。CdS纳米棒与助催化剂o-Co ₂的紧密相互作用P增强了光生电子-空穴对的分离。因此，对于CdS，o-Co ₂ P的最佳负载量为5 wt％，磷化时间为80分钟，光催化H _2的产生速率为184.48 mmol g ^-1 h ^-1，在420 nm的表观量子产率超过CdS / o-Co ₂ P-5wt％的比例达到22.17％。这项研究提供了一种构建低成本和高性能的光催化剂的简单方法，该催化剂可增强光催化H _2的释放。