2026-05-22 中国科学院（CAS）
Schematic diagram of 1DCOF-CN, 3DCOF-CN and the integrated leaf-inspired 1D@3DCOF-2 heterostructure assembled from the same monomers. Inspired by the hierarchical organization of leaves, the heterostructure integrates mass-transport and catalytic functions within an architecture. AA: Ascorbic acid, OX: Oxidation product. (Image by SIOC)
＜関連情報＞
- https://english.cas.cn/newsroom/research-news/202605/t20260525_1159849.shtml
- https://www.nature.com/articles/s44160-026-01077-6
光触媒作用のための階層的に統合された共有結合性有機骨格ヘテロ接合のワンポット合成 One-pot synthesis of hierarchically integrated covalent organic framework heterojunctions for photocatalysis
Wen-Zhuang Wang,Ya Lu,Chao Liu,Yubin Fu,Xin Zhao,Hong-Xin Xu,Fei Song,Jing-Yuan Ma,Yi-Xue Xu,Shun-Feng Li,Qiao-Yan Qi,Shun-Qi Xu & Xin Zhao
Nature Synthesis Published:22 May 2026
DOI:https://doi.org/10.1038/s44160-026-01077-6
Abstract
Covalent organic frameworks (COFs) with crystalline networks and large surface areas provide an ideal platform to mimic natural structures for photosynthesis. However, it remains challenging to construct complex, multistate architectures using single-component COFs. Herein, inspired by leaf morphology, we demonstrate a one-pot synthesis for constructing a one-dimensional (1D) COF and a three-dimensional (3D) COF from identical binary monomers, yielding a hierarchically integrated COF heterostructure (1D@3DCOF-2). The 1D chains and 3D porous frameworks form in situ and are spatially integrated, forming a homogeneous S-scheme heterojunction that yields a built-in electric field for enhanced charge carrier dynamics. The hydrophilic 1D COF possesses excellent light-harvesting and Pt anchoring capacities, and the porous 3D COF ensures efficient mass transfer. With Pt as a cocatalyst, 1D@3DCOF-2 achieved an excellent hydrogen evolution rate (HER) of 45.7 mmol g−1 h−1 under visible light irradiation, surpassing that of the individual 3D COF (31.1 mmol g−1 h−1) and inactive 1D COF. Additionally, a higher rate up to 50.8 mmol g−1 h−1 was achieved in seawater. This work establishes a one-pot synthetic strategy for constructing multistage COFs towards nature-inspired high-performance heterostructures.
