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Abstract
Antibiotic pollution in tap water, surface water, and effluent needs to be controlled in China. Adsorption is an economical and eco-friendly way to solve the antibiotic contamination problem, such as tylosin. In this study, the chitosan/cellulose nanocomposite adsorbents entrapped with activated carbon are prepared by a sol-gel phase inversion method. Structures and properties of the adsorbents are characterized by SEM, EDXS, BET, XRD, FTIR XPS and Zeta potentials. The adsorption behavior of CCM-AC on tylosin is determined by batch and fixed-bed adsorption experiments, while their adsorption mechanism is also studied. The maximum adsorption capacity is 59.26 mg g−1, while the adsorption behavior is in accordance with the Langmuir equation and pseudo-second-order kinetics. These results confirm that the tylosin adsorption process is affected by chemical and physical interactions, and the adsorbent can be captured by tylosin with H-bond, electrostatic and π-π electron-donor-acceptor interaction. Adsorption experiments are significantly affected by pH.
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