A novel n-n type heterojunction BiOCl@COF-1 was synthesized by a facile one-step solvothermal method and used for the degradation of rhodamine B(RhB) in water. The structure, morphology, composition, optical and electrochemical properties of the prepared composites were characterized through various techniques. Compared with the pure BiOCl, the BiOCl@COF-1 composite demonstrated significantly enhanced efficiency and durability for degradation of RhB under visible light. The observed enhancement in photocatalytic activity can be attributed to the synergistic effect of the n-n type heterojunction, which notably improve the visible light absorption efficiency, and the efficient charge separation. Additionally, the possible photodegradation mechanism of RhB was explores based on the characterization results. This work not only offers a promising strategy for the purification of organic wastewater, but also provides an effective approach for the construction of other COF-based n-n type heterojunction.

中文翻译：

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BiOCl@COF-1n-n型异质结光催化剂在可见光下增强降解罗丹明B


通过简便的一步溶剂热法合成了一种新型n-n型异质结BiOCl@COF-1，并用于水中罗丹明B(RhB)的降解。通过各种技术对所制备的复合材料的结构、形貌、组成、光学和电化学性能进行了表征。与纯 BiOCl 相比，BiOCl@COF-1 复合材料在可见光下的 RhB 降解效率和耐久性显着提高。观察到的光催化活性的增强可归因于 n-n 型异质结的协同效应，显着提高了可见光吸收效率和有效的电荷分离。此外，根据表征结果探讨了RhB可能的光降解机制。这项工作不仅为有机废水的净化提供了一种有前途的策略，而且为构建其他基于COF的n-n型异质结提供了有效的方法。