We report significant enhancement of photocatalytic properties of g-C₃N₄ by a facile Lithium (Li)-intercalation method. The Li atoms are successfully and stably intercalated into the interlayer of g-C₃N₄ by n-butyl lithium (n-BuLi). The photocatalytic activity of the Li-intercalated g-C₃N₄ was observed to be significantly improved by 2.8 times in degradation of a dye (RhB), compared to that of pristine g-C₃N₄. The synergetic effects of the narrowed band gap, enhanced surface area, establishment of an interlayer pathway, and positive shift in the valence band position improve the photocatalytic activity of the Li-intercalated g-C₃N₄. Our discovery provides a promising route to manipulate the photocatalytic activity simply by increasing the Li concentration after the growth process of the g-C₃N₄, gaining a deeper understanding of the improvement in the photocatalytic efficiency.

我们报告了一种简便的锂（Li）插层方法显着提高gC ₃ N ₄的光催化性能。所述Li原子被成功地并稳定地嵌入到的GC中间层₃ Ñ ₄由Ñ丁基锂（Ñ正丁基锂）。观察到与原始gC ₃ N ₄相比，嵌入锂的gC ₃ N ₄的光催化活性显着提高了染料（RhB）降解的2.8倍。。带隙变窄，表面积增加，层间途径的建立以及价带位置的正向移动的协同效应改善了嵌入锂的gC ₃ N ₄的光催化活性。我们的发现为通过在gC ₃ N ₄的生长过程后增加Li的浓度提供了一种有希望的途径来控制光催化活性，从而使人们对光催化效率的提高有了更深入的了解。