Covalent Organic Frameworks: New Materials Platform for Photocatalytic Degradation of Aqueous Pollutants.

IF 3.1 3区材料科学 Q3 CHEMISTRY, PHYSICAL

Materials Pub Date : 2021-09-27 DOI:10.3390/ma14195600

Yuhang Qian, Dongge Ma

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引用次数: 19

Abstract

Covalent organic frameworks (COFs) are highly porous and crystalline polymeric materials, constructed by covalent bonds and extending in two or threedimensions. After the discovery of the first COF materials in 2005 by Yaghi et al., COFs have experienced exciting progress and exhibitedtheirpromising potential applications invarious fields, such as gas adsorption and separation, energy storage, optoelectronics, sensing and catalysis. Because of their tunablestructures, abundant, regular and customizable pores in addition to large specific surface area, COFs can harvest ultraviolet, visible and near-infrared photons, adsorb a large amount of substrates in internal structures and initiate surface redox reactions to act as effective organic photocatalysts for water splitting, CO₂ reduction, organic transformations and pollutant degradation. In this review, we will discuss COF photocatalysts for the degradation of aqueous pollutants. The state-of-the-art paragon examples in this research area will be discussed according to the different structural type of COF photocatalysts. The degradation mechanism will be emphasized. Furthermore, the future development direction, challenges required to be overcome and the perspective in this field will be summarized in the conclusion.

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共价有机框架:光催化降解水性污染物的新材料平台。

共价有机框架(COFs)是由共价键构成并在二维或三维延伸的高多孔性和结晶性聚合物材料。自2005年Yaghi等人首次发现COF材料以来，COF在气体吸附与分离、储能、光电子、传感和催化等领域取得了令人振奋的进展，并展示了其广阔的应用前景。COFs具有可调节的结构、丰富的、规则的、可定制的孔隙以及较大的比表面积，可以收集紫外线、可见光和近红外光子，在内部结构中吸附大量底物并引发表面氧化还原反应，作为有效的有机光催化剂，用于水分解、CO2还原、有机转化和污染物降解。本文综述了COF光催化剂在水中污染物降解中的应用。本文将根据COF光催化剂的不同结构类型，讨论本研究领域中最先进的典型例子。将着重介绍降解机理。并在结论部分总结了未来的发展方向、需要克服的挑战以及该领域的前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

5.80

自引率

14.70%

发文量

7753

审稿时长

1.2 months

期刊介绍： Materials (ISSN 1996-1944) is an open access journal of related scientific research and technology development. It publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Materials provides a forum for publishing papers which advance the in-depth understanding of the relationship between the structure, the properties or the functions of all kinds of materials. Chemical syntheses, chemical structures and mechanical, chemical, electronic, magnetic and optical properties and various applications will be considered.