Development of photocatalysts with characters of low-cost, environment friendliness, visible light response and good performance is vital for the transformation of solar energy into hydrogen fuel. Here, we constructed CoPCdS nanorods hybrid composites via a novel two-step in-situ growth method for the first time. The obtained CoPCdS composites exhibited remarkably enhanced photocatalytic performance and excellent stability in comparison with bare CdS nanorods. Notably, the optimum H₂ evolution rate of 1 wt%CoPCdS was 9.11 times higher than that of pristine CdS. The apparent quantum efficiency of the photocatalyst was calculated to be 11.6%. The superior activity of this material could be attributed to the role of well dispersed CoP nanoparticles and the intimate interface between CoP cocatalysts and CdS nanorods, which efficiently accelerated the separation and transfer of photogenerated electrons. This work provided a new in-situ growth method for the preparation of transition metal phosphides coated photocatalysts with boosted photocatalytic activity of hydrogen evolution.

具有低成本，环境友好，可见光响应和良好性能的光催化剂的开发对于将太阳能转化为氢燃料至关重要。在这里，我们首次通过新颖的两步原位生长方法构建了CoP CdS纳米棒杂化复合材料。与裸露的CdS纳米棒相比，所获得的CoP CdS复合材料表现出显着增强的光催化性能和出色的稳定性。值得注意的是，最佳H ₂释放速率为1 wt％CoPCdS是原始CdS的9.11倍。光催化剂的表观量子效率经计算为11.6％。这种材料的卓越活性可以归因于分散良好的CoP纳米颗粒的作用以及CoP助催化剂和CdS纳米棒之间的紧密界面，从而有效地加速了光生电子的分离和转移。这项工作为制备过渡金属磷化物涂层的光催化剂提供了新的原位生长方法，该催化剂具有增强的析氢光催化活性。