A novel bilayer porous resin with micropore filling and anion exchange (PsCH2BP) was synthesized. The aim was to investigate the adsorption of sulfadiazine on PsCH2BP. The micropore area of PsCH2BP was reduced by 73.91 % after the adsorption of sulfadiazine. PsCH2BP exhibited the synergism of micropore filling and anion exchange in the adsorption of sulfadiazine. Within the pH range of 7.29-13.31, the adsorption capacity trend of sulfadiazine on PsCH2BP was consistent with its ionization curve of pka 6.48. The adsorption of sulfadiazine on PsCH2BP was endothermic, spontaneous, entropy increase...
