Comparative Study on Photocatalytic Hydrogen Production Efficiency of Benzodifuran-Based Covalent Organic Frameworks: Impact of Carboxamide and Ethyl Carboxylate Side Chains

作者：Feng Duan, Jinhai Bi, Yubiao Zhi, Xuezhou Ni, Mao Shen, Shi-Bin Ren, Yuxiang Chen, Li Zhang, Deman Han · 发表于：ACS Applied Energy Materials · 年份：2024 · DOI：10.1021/acsaem.4c02073 · 被引用次数：7 · 研究领域：Covalent Organic Framework Applications、Metal-Organic Frameworks: Synthesis and Applications、Advanced Photocatalysis Techniques

Visible light-driven hydrogen production from water using solar energy for chemical conversion represents a promising technological advancement. Among the competitive photocatalysts, covalent organic frameworks have garnered considerable attention. In this study, we introduce carboxamide side chains into benzodifuran-based covalent organic frameworks ( BDF-COF-1 ) to propose an efficient strategy for photocatalytic hydrogen production. Additionally, a benzodifuran covalent organic framework featuring ethyl carboxylate side chains ( BDF-COF-2 ) was synthesized to contrast with BDF-COF-1 . Notably, BDF-COF-1 exhibited exceptional photocatalytic activity under visible light irradiation, achieving a hydrogen production rate of 57.48 mmol g –1 h –1, significantly surpassing that of BDF-COF-2 under identical conditions (4.40 mmol g –1 h –1 ).