Abstract
AbstractCationic and anionic forms of cellulose were synthesized by introducing quaternary ammonium groups and carboxyl groups, respectively, to the skeleton of cellulose from flax noil. Batch adsorption experiments were carried out to explore the removal of ciprofloxacin (CIP) from aqueous solution using the cationic and anionic cellulose (cationic flax noil cellulose (CCFN) and anionic flax noil cellulose (ACFN)) obtained as adsorbents. The adsorbents were characterized by FTIR spectroscopy, X-ray photoelectron spectroscopy (XPS), XRD measurements, and SEM. The effects of various parameters including adsorbent dose, contact time, pH, and temperature on the adsorption performance were investigated. The adsorption data were analyzed using non-linear kinetics and isotherms models. FTIR, XPS, and XRD studies confirmed that the cationic and anionic groups had been successfully bound to the cellulose molecules after functionalization. SEM images showed that the surface morphology changed substantially after m...
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