Non-metal doping not only optimizes the energy band structure of g-C₃N₄ to improve the absorption of visible light, but also exacerbates the distortion of lowest and highest unoccupied molecular orbital plane, causing polarization, thereby improving photocatalytic activity. For the first time, S and P are co-introduced into g-C₃N₄ network to enhance photocatalytic performance and create various tubular morphologies. The ratio of S to P is crucial to control the tubular morphology and property. In the photocatalytic process, the separation of electrons and holes causes by the polarization of the S and P elements and the synergy of the tubular morphology results in new migration paths for photogenerated electrons and holes. Using optimized preparation conditions, g-C₃N₄ tubes co-doped with S and P (CNSP) reveal very high H₂ generation efficiency (163.27 μmol/h), which is two orders of magnitude higher compared to that of pure g-C₃N₄ and apparent quantum yield is 18.93% at 420 nm. Fast degradation of Rhodamine B by using CNSP occurs within 5 min under visible light irradiation. Because of the reproducible process, the synthetic strategy provides a novel method for controlling the morphology of g-C₃N₄-based materials with super activity.

非金属掺杂不仅优化了gC ₃ N ₄的能带结构以改善可见光的吸收，而且加剧了最低和最高未占据分子轨道平面的畸变，引起极化，从而提高了光催化活性。第一次将S和P共同引入gC ₃ N ₄网络以增强光催化性能并创建各种管状形态。S与P的比例对于控制管状形态和性能至关重要。在光催化过程中，电子和空穴的分离是由S和P元素的极化引起的，并且管状形态的协同作用导致了光生电子和空穴的新迁移路径。使用优化的制备条件，掺有S和P（CNSP）的gC ₃ N ₄管显示出非常高的H ₂生成效率（163.27μmol/ h），比纯gC ₃ N ₄高出两个数量级。在420 nm处的表观量子产率为18.93％。在可见光照射下，使用CNSP可以在5分钟内快速降解罗丹明B。由于可重复的过程，合成策略为控制具有超强活性的基于gC ₃ N ₄的材料的形态提供了一种新颖的方法。