Owing to their distinct collaboration nature, high atom usage, and high catalytic performance, single-atom catalysts have become most dynamically studied in various catalytic reactions. Graphitic carbon nitride (g-CN), as one of the most promising two-dimensional supports for stable immobilization of single-atom metals, has received extensive investigations. In this review, the recent developments of g-CN-supported single-atom photocatalysts for hydrogen evolution are summarized, with the metal-support interactions and structure regulations for stable and efficient catalysis being highlighted. Finally, the difficulties and potentials for future development of g-CN-supported single-atom materials in photocatalytic hydrogen evolution are proposed.

中文翻译：

---

氮化碳负载单原子光催化剂析氢研究进展

由于其独特的协作性质、高原子利用率和高催化性能，单原子催化剂在各种催化反应中已成为最活跃的研究对象。石墨氮化碳（g-CN）作为最有前途的稳定固定单原子金属的二维载体之一，已受到广泛的研究。在这篇综述中，总结了 g-CN 负载的单原子光催化剂用于析氢的最新进展，重点介绍了金属-载体相互作用和稳定高效催化的结构调控。最后，提出了g-CN负载单原子材料在光催化析氢方面未来发展的困难和潜力。