Non-noble metal Cd nanoparticles, as an efficient cocatalyst, are successfully constructed onto the surface of hexagonal CdS nanorods (CdS NRs) for the photocatalytic hydrogen evolution reaction by a facile in situ chemical reduction approach based on a thermal treatment process. The in situ introduction of Cd can significantly improve the photocatalytic H₂ production performance of CdS NRs in sodium sulfide and sodium sulfite aqueous solutions under visible light irradiation. The superior electrical conductivity of metallic Cd and the intimate interfacial contact between Cd and CdS NRs are suggested to account for the enhanced light absorption intensity, more efficient charge separation, and faster interfacial charge migration, resulting in the dramatically promoted photocatalytic H₂ production activity. This work provides a new route for the in situ deposition of Cd nanoparticles onto CdS and other Cd-containing semiconductor photocatalysts with desired morphologies.

通过基于热处理工艺的简便原位化学还原方法，成功地在六方CdS纳米棒（CdS NRs）的表面上成功构建了非贵金属Cd纳米颗粒，作为一种有效的助催化剂。在可见光照射下，Cd的原位引入可以显着提高CdS NRs在硫化钠和亚硫酸钠水溶液中的光催化H ₂生成性能。建议使用金属Cd的优异电导率以及Cd和CdS NRs之间的紧密界面接触，以说明增强的光吸收强度，更有效的电荷分离和更快的界面电荷迁移，从而显着促进光催化H _2的转化。生产活动。这项工作为将Cd纳米颗粒原位沉积到具有所需形态的CdS和其他含Cd的半导体光催化剂上提供了一条新途径。