Polymeric carbon nitride (g-C₃N₄)-based Z-scheme photocatalysts have attracted widespread attention owing to their notable light-harvesting capability, spatially separated reductive and oxidative active sites, and strong redox ability. This review article presents a panorama of the latest developments of g-C₃N₄-based Z-scheme photocatalysts for various applications. The development status and basic working principle of g-C₃N₄-based Z-scheme photocatalysts is introduced. After that, the characterization technologies for g-C₃N₄-based Z-scheme photocatalysts are discussed. Later, a series of representative g-C₃N₄-based Z-scheme photocatalysts for various photocatalytic applications, including water splitting, CO₂ reduction, N₂ fixation, and H₂O₂ production are exemplified. Finally, this review offers some perspectives on the major challenges and opportunities for future research in this emerging field. There is little doubt that advanced g-C₃N₄-based Z-scheme nanostructured materials could act as highly efficient photocatalysts to achieve new breakthroughs for diverse photocatalysis applications.

基于聚合碳氮化物（gC ₃ N ₄）的Z型光催化剂由于其显着的光收集能力，在空间上分离的还原和氧化活性位点以及强大的氧化还原能力而引起了广泛的关注。这篇综述文章介绍了基于gC ₃ N ₄的Z方案光催化剂在各种应用中的最新进展。介绍了基于gC ₃ N ₄的Z-方案光催化剂的发展现状和基本工作原理。之后，讨论了基于gC ₃ N ₄的Z-方案光催化剂的表征技术。后来，一系列具有代表性的gC ₃以用于水分解，CO ₂还原，N ₂固定和H ₂ O ₂产生的各种光催化应用的基于N ₄的Z-方案光催化剂为例。最后，本综述提供了有关该新兴领域未来研究的主要挑战和机遇的一些观点。毫无疑问，先进的基于gC ₃ N ₄的Z方案纳米结构材料可以作为高效的光催化剂，为各种光催化应用实现新的突破。