Amine-functionalized copper-coordinated cryogels for efficient removal of Acid Blue 113 from water

and reached equilibrium within 30 min, indicating rapid adsorption kinetics. Kinetic data were best described by the pseudo-second-order model, while equilibrium data fitted well to the Langmuir isotherm, suggesting monolayer adsorption on homogeneous active sites. Additionally, the Cu(II)-containing cryogel exhibited notable antibacterial activity against several Gram-positive and Gram-negative bacteria. These findings demonstrate that the developed cryogel combines high adsorption capacity, rapid kinetics, and antimicrobial functionality, making it a promising material for advanced wastewater treatment applications.