Volume 42, Issue 17 pp. 1960-1966
Concise Report

A Selenium Atom Involved Covalent Organic Framework for Window Ledge Photocatalytic Oxidation of Sulfides

Fan Yang

Corresponding Author

Fan Yang

College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong, 250014 China

These authors contributed equally to this work.

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
Xia Li

Xia Li

College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong, 250014 China

These authors contributed equally to this work.

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Hong-Yan Qu

Hong-Yan Qu

College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong, 250014 China

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Jing-Lan Kan

Jing-Lan Kan

College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong, 250014 China

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Yuan Guo

Corresponding Author

Yuan Guo

School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, 250353 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
Yu-Bin Dong

Corresponding Author

Yu-Bin Dong

College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong, 250014 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
First published: 20 April 2024
Citations: 10

Comprehensive Summary

Covalent organic frameworks (COFs) driven photocatalytic organic transformations especially photooxidation reactions have become a fertile topic and attracted numerous research attentions. Boosting the charge generation and transport process is the key factor for achieving high catalytic efficiencies. As one of the most effective strategies, the introduction of “heavy atoms” into the long-range ordered conjugated backbones can effectively facilitate the intersystem crossing (ISC) process and hence improve the generation of active oxygens, which is beneficial for the oxidation. In this work, we designed and synthesized a benzoselenadiazole based covalent organic framework (COF) material, BSe-COF with heavy atom of selenium (Se), and a benzothiadiazole based BT-COF with isomorphic backbone for comparison. Compared to BT-COF, BSe-COF exhibits broader absorption range, stronger photocurrent response and enhanced intersystem crossing (ISC) with higher singlet oxygen (1O2) generation efficiency. When applied in photocatalytic organic transformation, BSe-COF presents remarkably higher photocatalytic activity in the oxidation of sulfides than BT-COF under the irradiation of blue LED lamp. Furthermore, BSe-COF can be used as efficient photocatalyst for the window ledge reaction with high yields (over 84%) of various sulfoxides from a wide range of thioether substrates scope.

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