Pore-Wall Pyridine-N Density Regulation in Covalent Organic Frameworks for Enhanced Gold Capture

Key Points

• The study aims to improve gold capture efficiency using covalent organic frameworks by regulating pyridine-N density.
• Investigated pyridine-N density regulation in quinoline-linked covalent organic frameworks (COFs)
• Analyzed the adsorption capacity of COF-Q-Pz with varying pyridine-N densities
• COF-Q-Pz achieved the highest pyridine-N density
• Recorded an impressive gold adsorption capacity of 2512.2 mg g -1