sp2 carbon-conjugated covalent organic frameworks for efficient photocatalytic degradation and visualized pH detection

Post-Synthetic Modification of a Fluorescent Covalent Organic Framework as a Multifunctional Sensor for Efficient Detection of 5-Hydroxytryptamine and Its Metabolite and Latent Fingerprint Identification

“…Additionally, the additional weak peak at 2θ = 8.48° can be ascribed to the 110 plane. PXRD shows that the diffraction peaks of the synthesized COF are well matched with the literature, , suggesting that the TMT-TA COF with good crystallinity has been successfully prepared. Further, to verify whether functionalization influences the crystallinity of the TMT-TA COF, the structure of TMT-TA-COOH is also characterized by PXRD (Figure a).…”

Recent advances in metal-free covalent organic frameworks for photocatalytic applications in energy and environmental fields

“…This study extended the application of COFs for selective pollutant degradation to a wide range of photocatalytic transformations. Chen et al 94 reported triazine-based sp 2 -carbon conjugated g-C 18N 3– COFs for the efficient photocatalytic degradation of RhB and detection of pH. The prepared COFs had good photocatalytic performance owing to their protonated broadened light absorption region and narrow band gap.…”

Fluorescent covalent organic frameworks for environmental pollutant detection sensors and enrichment sorbents: a mini-review

“…Since COFs were rst reported in 2005, they have attracted much attention as a new star in the polymeric porous organic material community. Compared with traditional porous organic materials, in addition to the characteristics of stable chemical properties, high specic surface area and ordered pore structure, the biggest advantage of COFs lies in the highly tunable and easy functionalization, which can be synthesized by structural design followed by modication of modied COFs, 85,86 COF-metal composites, 87,88 COF-MIP composites, 89,90 COF membranes, [91][92][93] and COF-composite hydrogel materials, 94,95 which give more functions to common COFs (e.g., dualemission ratio uorescence detection, 19,96 visualization detection, 16,39,97 and RGB analysis 54,98 ). These different forms of COFs are suitable for the applications in different application areas (Fig.…”