Synthesis of cadmium(ii) ion-imprinted composite membrane with a pyridine functional monomer and characterization of its adsorption performance

Abstract Cd( ii ) ion was used as template ion, and N , '-pyridine-2,6-di(2-methacrylamide) the functional monomer. The experimental conditions for synthesis of ion-imprinted composite membranes (Cd( )-IICMs) were optimized by surface-imprinting method, 25 )-IICM 1–25 their corresponding non-imprinted (NICM prepared. Then, structures optimal 17 NICM characterized scanning electron microscopy, Brunner–Emmett–Teller, thermogravimetric analysis, contact angle effects different adsorption studied. behavior analyzed isothermal models kinetic models. permeation selectivity towards ions Results experiment indicate that had excellent properties with an imprinting factor 2.15. in solution accordance Freundlich model pseudo-second-order model. In addition, presence competing Co( ), Ni( Cu( showed good ions, process followed a facilitated mass-transfer mechanism. summary, prepared this study has application prospects separation removal from wastewater.