Abstract: A novel ureido-functionalized Pb(II)-imprinted polymer (Pb(II)-IIP) was synthesized using Pb(II) ion, γ-ureidopropyltrimethoxysilane, AIBN and EGDMA as template ion, functional monomer, initiator and cross-linking agent, respectively. Pb(II)-IIP was characterized by FTIR and SEM. The effect of initial concentration of Pb(II) ions, adsorption time, temperature and pH values on the adsorption capacity of Pb(II)-IIP were studied. The equilibrium adsorption capacity of Pb(II)-IIP could reach 97.5 mg g-1. Langmuir models were adopted and R2 was 0.9908. The adsorption process is endothermic and could occur spontaneously. The relative selectivity coefficients of Pb(II)-IIP were 3.55, 7.02, 3.77 for Pb2+/Cd2+, Pb2+/Cu2+, Pb2+/Zn2+ respectively
Template and target information: lead ion, Pb(II)