Light-driven H2O2 production over redox-active imine-linked covalent organic frameworks
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 li...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2024-04-01
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| Series: | Advanced Powder Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772834X24000101 |
| _version_ | 1797292864641695744 |
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| author | Songlin Zhang Jinwen Hu Wenzhe Shang Jingya Guo Xusheng Cheng Suchan Song Tianna Liu Wei Liu Yantao Shi |
| author_facet | Songlin Zhang Jinwen Hu Wenzhe Shang Jingya Guo Xusheng Cheng Suchan Song Tianna Liu Wei Liu Yantao Shi |
| author_sort | Songlin Zhang |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-07T20:02:44Z |
| format | Article |
| id | doaj.art-0549583839af4fb2aca9e994b8a407b7 |
| institution | Directory Open Access Journal |
| issn | 2772-834X |
| language | English |
| last_indexed | 2024-03-07T20:02:44Z |
| publishDate | 2024-04-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Advanced Powder Materials |
| spelling | doaj.art-0549583839af4fb2aca9e994b8a407b72024-02-28T05:14:41ZengKeAi Communications Co. Ltd.Advanced Powder Materials2772-834X2024-04-0132100179Light-driven H2O2 production over redox-active imine-linked covalent organic frameworksSonglin Zhang0Jinwen Hu1Wenzhe Shang2Jingya Guo3Xusheng Cheng4Suchan Song5Tianna Liu6Wei Liu7Yantao Shi8School of Chemistry, Dalian University of Technology, Dalian 116024, ChinaSchool of Chemistry, Dalian University of Technology, Dalian 116024, ChinaSchool of Chemistry, Dalian University of Technology, Dalian 116024, ChinaSchool of Chemistry, Dalian University of Technology, Dalian 116024, ChinaSchool of Chemistry, Dalian University of Technology, Dalian 116024, ChinaSchool of Chemistry, Dalian University of Technology, Dalian 116024, ChinaSchool of Chemistry, Dalian University of Technology, Dalian 116024, ChinaCorresponding author.; School of Chemistry, Dalian University of Technology, Dalian 116024, ChinaSchool of Chemistry, Dalian University of Technology, Dalian 116024, ChinaImine-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.http://www.sciencedirect.com/science/article/pii/S2772834X24000101PhotocatalysisImine-linked COF-LZU1AutooxidationWurster's salt mimicsH2O2 |
| spellingShingle | Songlin Zhang Jinwen Hu Wenzhe Shang Jingya Guo Xusheng Cheng Suchan Song Tianna Liu Wei Liu Yantao Shi Light-driven H2O2 production over redox-active imine-linked covalent organic frameworks Advanced Powder Materials Photocatalysis Imine-linked COF-LZU1 Autooxidation Wurster's salt mimics H2O2 |
| title | Light-driven H2O2 production over redox-active imine-linked covalent organic frameworks |
| title_full | Light-driven H2O2 production over redox-active imine-linked covalent organic frameworks |
| title_fullStr | Light-driven H2O2 production over redox-active imine-linked covalent organic frameworks |
| title_full_unstemmed | Light-driven H2O2 production over redox-active imine-linked covalent organic frameworks |
| title_short | Light-driven H2O2 production over redox-active imine-linked covalent organic frameworks |
| title_sort | light driven h2o2 production over redox active imine linked covalent organic frameworks |
| topic | Photocatalysis Imine-linked COF-LZU1 Autooxidation Wurster's salt mimics H2O2 |
| url | http://www.sciencedirect.com/science/article/pii/S2772834X24000101 |
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