Covalent Organic Framework-Based Nanoparticles for Catalytic Environmental Remediation

Abstract

Metallic nanoparticles (M-NPs) have gained increasing intention in catalytic environmental remediation owing to their distinctive chemical and physical properties. However, their aggregation during catalysis and difficult recovery after completion of reaction are the major issues related to their practical applications. It is well recognized that these grave issues can be resolved by anchoring M-NPs on highly porous support materials. In this scenario, covalent organic frameworks (COFs), an emerging class of porous materials, are the ideal host for anchoring M-NPs due to their high porosity with uniform pore size, large surface area, simple functionalization, and excellent chemical stability. In this chapter, recent progress on the synthesis of COFs-based M-NPs heterostructures, characterizations, and uses for the sustainable catalytic reduction of organic contaminants are described. Moreover, the recyclability and stability of COFs-based M-NPs catalysts are described briefly. Finally, the conclusion, challenges, and perspective are proposed.