Most recently, graphitic carbon nitride (g-C₃N₄) has emerged as one of the desirable stable organic polymers, owing to its diverse applications as a semiconducting photocatalyst in photoreduction of CO₂, water splitting, and elimination of various contaminants. In these regards, a series of modifications have been made in this semiconductor using carbon dots (CDs) to increase its efficiency in these photocatalytic processes, because of its fast recombination of the photoinduced charges, low specific surface area, and poor harvesting of visible light. This review highlights the applied protocols to ameliorate the photoactivity of g-C₃N₄/CDs-based nanocomposites through combining with various materials. This work shows that in addition to the charge effects, textural and morphological changes in g-C₃N₄ are also observed by coupling with CDs to change the bulk characteristics and extend its applications. This review can provide beneficial information about profundity realizing the versatile role of CDs in boosting photocatalytic ability of g-C₃N₄-based systems. The ultimate goal of this review can be both a tutorial to fundamental photocatalysis and a critical comment on the most recent progress in utilization of g-C₃N₄/CDs-based photocatalysts in different areas.

最近，由于其作为半导体光催化剂在CO _2的光还原，水分解和各种污染物的消除中的各种应用，石墨氮化碳（gC ₃ N ₄）已经成为理想的稳定有机聚合物之一。在这些方面，由于其光感应电荷的快速重组，比表面积低以及可见光收集不良，使用碳点（CD）对该半导体进行了一系列修改，以提高其在这些光催化过程中的效率。 。这篇评论重点介绍了改善gC ₃ N ₄的光活性的应用方案/ CDs纳米复合材料，可与多种材料结合使用。这项工作表明，除电荷效应外，还可以通过与CD偶联来观察gC ₃ N _4的质构和形态变化，从而改变其体积特性并扩展其应用。这篇综述可以提供有关深刻认识CD增强gC ₃ N ₄基系统光催化能力的通用作用的有益信息。这篇综述的最终目标既可以是基础光催化的指南，也可以是对不同领域中基于gC ₃ N ₄ / CDs的光催化剂利用的最新进展的批评。