Single-atom photocatalysts, due to their high catalysis activity, selectivity and stability, become a hotspot in the field of photocatalysis. Graphitic carbon nitride (g-C₃N₄) is known as both a good support for single atoms and a star photocatalyst. Developing g-C₃N₄-based single-atom photocatalysts exhibits great potential in improving the photocatalytic performance. In this review, we summarize the recent progress in g-C₃N₄-based single-atom photocatalysts, mainly including preparation strategies, characterizations, and their photocatalytic applications. The significant roles of single atoms and catalysis mechanism in g-C₃N₄-based single-atom photocatalysts are analyzed. At last, the challenges and perspectives for exploring high-efficient g-C₃N₄-based single-atom photocatalysts are presented.

中文翻译：

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石墨碳氮化物基单原子光催化剂

单原子光催化剂由于其高催化活性，选择性和稳定性而成为光催化领域的热点。石墨碳氮化物（gC ₃ N ₄）既是单原子的良好载体，又是星形光催化剂。研发基于gC ₃ N ₄的单原子光催化剂在改善光催化性能方面显示出巨大潜力。在这篇综述中，我们总结了基于gC ₃ N ₄的单原子光催化剂的最新进展，主要包括制备策略，表征及其光催化应用。单原子在gC ₃ N _4中的重要作用及其催化机理分析了基于单原子的光催化剂。最后，提出了探索高效的基于gC ₃ N ₄的单原子光催化剂的挑战和前景。