g-C₃N₄ is a polymer semiconductor material with visible-light response capability, BiOCl has a unique layered structure and indirect band gap transition mode, which can be effectively separated photoelectron-hole generation and charge transfer. This paper prepared the heterostructure of g-C₃N₄/BiOCl by hydrothermal method, and explored under what ratio g-C₃N₄/BiOCl can more effectively remove methylene blue (MB) in visible-light. The results show that BiOCl is well dispersed on the g-C₃N₄ layered structure, forming g-C₃N₄/BiOCl heterostructure, which has higher photocatalytic activity than single g-C₃N₄ and BiOCl. The degradation efficiency of 90 % g-C₃N₄/BiOCl was 91.53% when the photocatalysis progressed to 240 min.

gC ₃ N ₄是一种具有可见光响应能力的高分子半导体材料，BiOCl具有独特的层状结构和间接带隙跃迁模式，可以有效地分离光电子-空穴的产生和电荷转移。本文采用水热法制备了gC ₃ N ₄ /BiOCl的异质结构，并探讨了gC ₃ N ₄ /BiOCl在什么比例下能更有效地去除可见光下的亚甲基蓝(MB)。结果表明，BiOCl很好地分散在gC ₃ N ₄层状结构上，形成了gC ₃ N ₄/BiOCl异质结构，比单一的gC ₃ N ₄和BiOCl具有更高的光催化活性。当光催化进行到240分钟时，90% gC ₃ N ₄ /BiOCl的降解效率为91.53%。