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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.
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Heterogeneous Photocatalysts for Light‐Mediated Reversible Deactivation Radical Polymerization
Abstract Heterogeneous photocatalysis combines the benefits of light‐mediated chemistry with that of a catalytic platform that facilitates re‐use of (often expensive) photocatalysts. This provides significant opportunities towards more economical, sustainable, safe, and user‐friendly chemical syntheses of both small and macromolecular compounds. This contribution outlines recent developments in the design of heterogenous photocatalysts and their use to mediate polymerizations. We outline four classes of heterogeneous photocatalysts in detail: Nanoparticles, conjugated and non‐conjugated polymer networks, metal‐organic frameworks (MOFs), and functionalized solid supports.
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- Award ID(s):
- 2143628
- PAR ID:
- 10485529
- Publisher / Repository:
- Wiley-VCH
- Date Published:
- Journal Name:
- ChemPhotoChem
- Volume:
- 7
- Issue:
- 12
- ISSN:
- 2367-0932
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1002/cptc.202300090
