Toward Pore Size-Selective Photoredox Catalysis Using Bifunctional Microporous 2D Triazine-Based Covalent Organic Frameworks

IF 3.7 3区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Melika Eshaghi Kenari, Sayan Maiti, Jianheng Ling, Xena El-Shamy, Hiren Bagga, Matthew A. Addicoat, Phillip J. Milner and Anindita Das*, 
{"title":"Toward Pore Size-Selective Photoredox Catalysis Using Bifunctional Microporous 2D Triazine-Based Covalent Organic Frameworks","authors":"Melika Eshaghi Kenari,&nbsp;Sayan Maiti,&nbsp;Jianheng Ling,&nbsp;Xena El-Shamy,&nbsp;Hiren Bagga,&nbsp;Matthew A. Addicoat,&nbsp;Phillip J. Milner and Anindita Das*,&nbsp;","doi":"10.1021/acsomega.4c0617110.1021/acsomega.4c06171","DOIUrl":null,"url":null,"abstract":"<p >The design and synthesis of photoactive metal-free 2D materials for selective heterogeneous photoredox catalysis continue to be challenging due to issues related to nonrecyclability, and limited photo- and chemical stability. Herein, we report the photocatalytic properties of a triazine-based porous COF, <b>TRIPTA</b>, which is found to be capable of facilitating both SET (single electron transfer) for photocatalytic reductive debromination of phenacyl bromide in absence of oxygen and generation of reactive oxygen species (ROS) for benzylamine photo-oxidation in the presence of oxygen, respectively, under visible light irradiation. Inspired by the latter results, we further systematically investigated different-sized benzylamine substrates in this single-component reaction and compared the results with an analogous COF (<b>Micro-COF-2</b>) exhibiting a larger pore size. We observed a marked improvement in the conversion of larger-sized substrates with the latter COF, thereby demonstrating angstrom-level pore size-selective photocatalytic activity of COFs.</p>","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":"9 50","pages":"49249–49258 49249–49258"},"PeriodicalIF":3.7000,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsomega.4c06171","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Omega","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsomega.4c06171","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The design and synthesis of photoactive metal-free 2D materials for selective heterogeneous photoredox catalysis continue to be challenging due to issues related to nonrecyclability, and limited photo- and chemical stability. Herein, we report the photocatalytic properties of a triazine-based porous COF, TRIPTA, which is found to be capable of facilitating both SET (single electron transfer) for photocatalytic reductive debromination of phenacyl bromide in absence of oxygen and generation of reactive oxygen species (ROS) for benzylamine photo-oxidation in the presence of oxygen, respectively, under visible light irradiation. Inspired by the latter results, we further systematically investigated different-sized benzylamine substrates in this single-component reaction and compared the results with an analogous COF (Micro-COF-2) exhibiting a larger pore size. We observed a marked improvement in the conversion of larger-sized substrates with the latter COF, thereby demonstrating angstrom-level pore size-selective photocatalytic activity of COFs.

利用双功能微孔二维三嗪基共价有机框架进行孔径选择性光氧化还原催化
由于不可回收性、有限的光稳定性和化学稳定性等问题,设计和合成用于选择性非均相光氧化还原催化的无光活性金属2D材料仍然具有挑战性。在此,我们报道了三嗪基多孔COF TRIPTA的光催化性能,发现它在可见光照射下能够促进无氧条件下苯那基溴光催化还原脱溴反应的单电子转移(SET)和有氧条件下苯胺光氧化反应的活性氧(ROS)的产生。受后一个结果的启发,我们进一步系统地研究了这种单组分反应中不同尺寸的苄胺底物,并将结果与具有更大孔径的类似COF (Micro-COF-2)进行了比较。我们观察到后一种COF对大尺寸底物的转化有显著改善,从而证明了COF的埃级孔径选择性光催化活性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
ACS Omega
ACS Omega Chemical Engineering-General Chemical Engineering
CiteScore
6.60
自引率
4.90%
发文量
3945
审稿时长
2.4 months
期刊介绍: ACS Omega is an open-access global publication for scientific articles that describe new findings in chemistry and interfacing areas of science, without any perceived evaluation of immediate impact.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信