The great progresses witnessed in the last decade for the rational design of the graphitic carbon nitride (g-C₃N₄) have warranted its successful use in applications including sensing, photocatalysis, electromagnetic shielding and energy storage devices. There have been multiple studies for g-C₃N₄ (or g-CN) nanostructures that have underlined the substantial research as a photocatalyst and electrode material in energy devices, while no such in-depth study, on the other hand, went into detail about the g-CN based sensors, their underlying problems regarding the transduction principles, and sensitivity/selectivity issues towards various analytes. Although in its nascent stage, the g-CN nanostructures have made the detection possible in almost all environmental entities (land, air, and water), e.g., biomolecules (protein, glucose, melamine, amino acids) and engineered compounds (drugs, antibiotics, explosives), yet a systematic study summarizing the merits/demerits for g-CN based sensors is still missing. This review gives a detailed overview and summarizes the challenges while simultaneously highlights the key insights in the exciting field of sensors. Researchers working in the sensor domain will undoubtedly benefit from this review, as it will provide new perspectives into the intriguing world of g-CN material which has emerged as a new sensing platform that is at-par to other functional materials discussed in the literature.

在过去十年中，石墨氮化碳 (gC ₃ N ₄ ) 的合理设计取得了巨大进展，保证了其在传感、光催化、电磁屏蔽和储能设备等应用中的成功应用。_{gC 3} N ₄有多项研究（或 g-CN）纳米结构强调了作为能源设备中的光催化剂和电极材料的大量研究，而另一方面，没有深入研究基于 g-CN 的传感器及其潜在问题关于转导原理，以及对各种分析物的灵敏度/选择性问题。尽管处于初期阶段，g-CN 纳米结构已使几乎所有环境实体（土地、空气和水）中的检测成为可能，例如生物分子（蛋白质、葡萄糖、三聚氰胺、氨基酸）和工程化合物（药物、抗生素） ，炸药），但仍然缺少一项总结基于 g-CN 的传感器的优缺点的系统研究。这篇评论给出了详细的概述并总结了挑战，同时强调了令人兴奋的关键见解 传感器领域。毫无疑问，传感器领域的研究人员将从这篇综述中受益，因为它将为 g-CN 材料的有趣世界提供新的视角，该材料已成为一种新的传感平台，与文献中讨论的其他功能材料相当。