2D tris(triazolo)triazine-based covalent organic frameworks for efficient photoinduced molecular oxygen activation

IF 17.7 1区化学 Q1 CHEMISTRY, APPLIED

Chinese Journal of Catalysis Pub Date : 2025-08-25 DOI:10.1016/S1872-2067(25)64761-9

Shanshan Zhu , Xinrui Mao , Zhenwei Zhang , Liuliu Yang , Jiahao Li , Zhongping Li , Yucheng Jin , Huijuan Yue , Xiaoming Liu

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Abstract

Photoinduced molecular oxygen activation is crucial for artificial photosynthesis. However, metal-free semiconductor photocatalysts with high activation efficiency are still lacking up to now. Herein, two isomorphic tris(triazolo)triazine-based covalent organic frameworks were successfully constructed under solvothermal conditions. And they possess high crystallinity, inherent porosity with large surface area and good stability. Strong electron donor-acceptor skeletons expand the visible light harvesting, also facilitate the charge separation and thus lead to their superior activity of photoinduced molecular oxygen activation including photosynthesis of tetrahydroquinolines and hydrogen peroxide. This work provides a way to improve the efficiency of molecular oxygen activation through the rational design of COFs, and also opens new avenues for the construction of highly active and metal-free photocatalysts toward sustainable solar-to-chemical energy conversion.

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二维三（三唑）三嗪基共价有机框架的有效光诱导分子氧活化

光诱导分子氧活化是人工光合作用的关键。然而，目前仍缺乏具有高活化效率的无金属半导体光催化剂。本文在溶剂热条件下，成功构建了两个同构的三（三唑）三嗪基共价有机骨架。结晶度高，固有孔隙率大，比表面积大，稳定性好。强大的电子供体-受体骨架扩大了可见光的收集，也促进了电荷分离，从而导致其优越的光诱导分子氧活化活性，包括四氢喹啉和过氧化氢的光合作用。本研究为通过合理设计COFs来提高分子氧活化效率提供了一条途径，也为构建高活性和无金属光催化剂以实现可持续的太阳能-化学能转换开辟了新的途径。

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来源期刊

Chinese Journal of Catalysis 工程技术-工程：化工

CiteScore

25.80

自引率

10.30%

发文量

235

审稿时长

1.2 months

期刊介绍： The journal covers a broad scope, encompassing new trends in catalysis for applications in energy production, environmental protection, and the preparation of materials, petroleum chemicals, and fine chemicals. It explores the scientific foundation for preparing and activating catalysts of commercial interest, emphasizing representative models.The focus includes spectroscopic methods for structural characterization, especially in situ techniques, as well as new theoretical methods with practical impact in catalysis and catalytic reactions.The journal delves into the relationship between homogeneous and heterogeneous catalysis and includes theoretical studies on the structure and reactivity of catalysts.Additionally, contributions on photocatalysis, biocatalysis, surface science, and catalysis-related chemical kinetics are welcomed.