Please use this identifier to cite or link to this item:
Title: Effective photocatalytic initiation of reactive oxygen species by a photoactive covalent organic framework for oxidation reactions
Authors: Li, Yangyang
Luan, Tian-Xiang
Cheng, Ke
Zhang, Deshan
Fan, Weiliu
Li, Pei-Zhou
Zhao, Yanli
Keywords: Science::Chemistry
Issue Date: 2022
Source: Li, Y., Luan, T., Cheng, K., Zhang, D., Fan, W., Li, P. & Zhao, Y. (2022). Effective photocatalytic initiation of reactive oxygen species by a photoactive covalent organic framework for oxidation reactions. ACS Materials Letters, 4(6), 1160-1167.
Project: RG3/21 
Journal: ACS Materials Letters 
Abstract: Reactive oxygen species (ROS) play a vital role in both chemistry and physiology. Developing effective photocatalysts becomes a feasible approach to trigger the generation of ROS. Herein, a photosensitive covalent organic framework (COF) was rationally designed and constructed by incorporating the photoactive triphenylamine moieties into its skeleton, characterizations of which not only showed the success formation of the highly crystalline and stable framework, but also revealed the photoactive property derived from triphenylamine-based building block. Electron paramagnetic resonance measurements displayed that the COF was an effective photocatalyst for generating ROS with one unpaired electron, that is, superoxide radical anion (O2•-). Subsequently, its high efficiency, selectivity, and reusability in photocatalytic aerobic oxidation of sulfides confirmed that the COF is a promising photocatalyst in the applications of ROS-involved reactions, demonstrating that precisely embedding organic photochromic groups into COFs could be a powerful strategy to fabricate metal-free heterogeneous photocatalysts for targeted reactions.
ISSN: 2639-4979
DOI: 10.1021/acsmaterialslett.2c00236
Schools: School of Physical and Mathematical Sciences 
School of Chemistry, Chemical Engineering and Biotechnology 
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Materials Letters, copyright © 2022 American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CCEB Journal Articles
SPMS Journal Articles

Files in This Item:
File Description SizeFormat 
Manuscript.pdf1.41 MBAdobe PDFThumbnail

Citations 10

Updated on Apr 20, 2024

Web of ScienceTM
Citations 20

Updated on Oct 25, 2023

Page view(s)

Updated on Apr 19, 2024

Download(s) 50

Updated on Apr 19, 2024

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.