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Title: Challenges in photocatalysis using covalent organic frameworks
Abstract Photocatalysis is an attractive, energy-efficient technology for organic transformations, polymer synthesis, and degradation of environmental pollutants. There is a need for new photocatalysts stable in different media and that can be tailored for specific applications. Covalent organic frameworks (COF) are crystalline, nanoporous materials withπ-conjugated backbone monomers, representing versatile platforms as heterogeneous, metal-free photocatalysts. The backbone structure can be tailored to achieve desired photocatalytic properties, side-chains can mediate adsorption, and the nanoporous structure provides large surface area for molecular adsorption. While these properties make COFs attractive as photocatalysts, several fundamental questions remain regarding mechanisms for different photocatalytic transformations, reactant transport into porous COF structures, and both structural and chemical stability in various environments. In this perspective, we provide a brief overview of COF photocatalysts and identify challenges that should be addressed in future research seeking to employ COFs as photocatalysts. We close with an outlook and perspective on future research directions in the area of COF photocatalysts.  more » « less
Award ID(s):
2247729
PAR ID:
10598096
Author(s) / Creator(s):
; ;
Publisher / Repository:
IOP Science
Date Published:
Journal Name:
Journal of Physics: Photonics
Volume:
6
Issue:
3
ISSN:
2515-7647
Page Range / eLocation ID:
031001
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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