Hypoxanthine Modified Polyethylene Glycol Diglycidyl Ether Gel for Ciprofloxacin Adsorption

A hypoxanthine modified polyethylene glycol diglycidyl ether gel was prepared by the ring opening polymerization of with in a simple sol-gel method. The structure and composition were characterized SEM, FT-IR, BET XRD. adsorption experiments ciprofloxacin at different pH, temperature, contact time initial concentration studied. results show that is porous average pore size 5.2 nm, optimum pH 5 saturated 240 minutes. maximum equilibrium capacity 56.1 mg/g 308 K according to Langmuir model. repeated could still adsorb 80% first adsorbed after times elution. These indicate can be used as practical adsorbent for aqueous solution.