苯
海水
催化作用
光合作用
化学
化学工程
戒指(化学)
共价键
材料科学
光化学
有机化学
地质学
生物化学
海洋学
工程类
作者
Yuxin Liao,Liecheng Guo,Lele Gong,Qing Yun Zhang,Dan Zhao,Yangqing Jia,Rong Hua,Feng Luo
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-03-15
卷期号:24 (12): 3819-3825
标识
DOI:10.1021/acs.nanolett.4c00628
摘要
Photosynthesis of H2O2 from seawater represents a promising pathway to acquire H2O2, but it is still restricted by the lack of a highly active photocatalyst. In this work, we propose a convenient strategy of regulating the number of benzene rings to boost the catalytic activity of materials. This is demonstrated by ECUT-COF-31 with adding two benzene rings as the connector, which can result in 1.7-fold enhancement in the H2O2 production rate relative to ECUT-COF-30 with just one benzene ring as the connector. The reason for enhancement is mainly due to the release of *OOH from the surface of catalyst and the final formation of H2O2 being easier in ECUT-COF-31 than in ECUT-COF-30. Moreover, ECUT-COF-31 provides a stable photogeneration of H2O2 for 70 h, and a theoretically remarkable H2O2 production of 58.7 mmol per day from seawater using one gram of photocatalyst, while the cost of the used raw material is as low as 0.24 $/g.
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