| Autor: |
Songlin Zhang, Jinwen Hu, Wenzhe Shang, Jingya Guo, Xusheng Cheng, Suchan Song, Tianna Liu, Wei Liu, Yantao Shi |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Advanced Powder Materials, Vol 3, Iss 2, Pp 100179- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2772-834X |
| DOI: |
10.1016/j.apmate.2024.100179 |
| Popis: |
Imine-linked covalent organic frameworks (COFs) provide distinctive prospects for promoting photocatalytic H2O2 production, yet the intricate involvement of imine-derived linkages chemistry under light irradiation remains incompletely elucidated. Here, imine-linked COF-LZU1 demonstrates a visible light-driven H2O2 evolution rate of 387 μmol g−1 h−1, particularly, negligible dependence on the sacrificial agents. By virtue of electron paramagnetic spectroscopy and solid-state nuclear magnetic resonance, we experimentally tracked the structure evolution and identified its autooxidation to Wurster's salt mimics under the photocatalytic conditioning. This finding coincides with the radical anion ·O2− governed reaction pathway and is further rationalized with additional theoretical calculations. This study provides insights into both photophysical/photochemical aspects over the imine-linkage structure. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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