Synthesis of covalent organic framework materials and their application in the field of sensing

Phenanthroline-functionalized donor–acceptor covalent organic frameworks as photo-responsive nanozymes for visual colorimetric detection of isoniazid

“…13,14 The COFs have shown a great potential for molecular sieving, catalysis, batteries, sensing, and many others applications because of their ability to be structurally predesignable, synthetically controllable, and functionally modulable. 15–17 The significant features of the COFs like high porosity, stable ordered crystal structure, tunable light absorption, and rich network topologies can be obtained by the reaction between monomers with modulable properties. 18 The foray into novel motifs embedding orderly donor–acceptors (D–A) linked into frameworks has been applied for the efficient generation and separation of photogenerated carriers for device performance enhancement.…”

High-Performance Trimethylamine Sensor Based on an Imine Covalent Organic Framework

“…Due to these characteristics, COFs have attracted significant interest from the scientific community . COFs are usually composed of C, N, O, B, and S connected by strong covalent bonds, e.g., C–N, CN, CC–N, B–O, etc. − They exhibit unique properties, including ordered channels, large specific surface area, highly tunable porosity, selectable building blocks, predictable structure, and abundant functional groups, making them excellent for sensing. , The large adhesion surface of COFs to gas molecules is due to their ordered network configuration and multiple active cavities during sensing . Furthermore, COFs are thermally and chemically stable due to the involvement of covalent bonds by generating a finite molecular space and interfaces for photons, excitons, electrons, holes, spins, ions, and molecular interactions.…”