Oxidation-Reduction Molecular Junction Covalent Organic Frameworks for Full Reaction Photosynthesis of H2O2 |
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| Authors: | Dr. Jia-Nan Chang Qi Li Jing-Wen Shi Dr. Mi Zhang Lei Zhang Shan Li Prof. Yifa Chen Prof. Shun-Li Li Prof. Ya-Qian Lan |
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| Affiliation: | 1. Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023 P. R. China;2. School of Chemistry, South China Normal University, Guangzhou, 510006 P. R. China |
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| Abstract: | The full reaction photosynthesis of H2O2 that can combine water-oxidation and oxygen-reduction without sacrificial agents is highly demanded to maximize the light-utilization and overcome the complex reaction-process of anthraquinone-oxidation. Here, a kind of oxidation-reduction molecular junction covalent-organic-framework (TTF-BT-COF) has been synthesized through the covalent-coupling of tetrathiafulvalene (photo-oxidation site) and benzothiazole (photo-reduction site), which presents visible-light-adsorption region, effective electron-hole separation-efficiency and photo-redox sites that enables full reaction generation of H2O2. Specifically, a record-high yield (TTF-BT-COF, ≈276 000 μM h−1 g−1) for H2O2 photosynthesis without sacrificial agents has been achieved among porous crystalline photocatalysts. This is the first work that can design oxidation-reduction molecular junction COFs for full reaction photosynthesis of H2O2, which might extend the scope of COFs in H2O2 production. |
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| Keywords: | Covalent Organic Framework Full Reaction H2O2 Oxidation-Reduction Molecular Junction Photocatalysis |
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