Application of composite based on magnetite oxide to remove the ofloxacin from aqueous solution
Tu Tran Tuan, Jun-2025, In: Vietnam Journal of Science and Technology ( VJST), 63, 3, p. 540-552
Overview
Abstract:
In this research, chitosan-Fe 3 O 4 composite materials (CS-MNPs) were successfully synthesized using chemical processes. XRD, SEM, TEM, EDS and VSM techniques were employed to analyze the characteristics of the materials. To remove the antibiotic ofloxacin (OFX) from aqueous solutions, CS-MNPs were used as an adsorbent. The effects of pH, contact time, initial concentration, and the presence of another antibiotic (ciprofloxacin) in the solution were investigated to evaluate the ability of OFX to be adsorbed. The experimental data were analyzed using adsorption models, including kinetic models (pseudo-first-order, pseudo-second-order, and Elovich models), isotherm adsorption models (Langmuir, Freundlich, and Temkin models), and the Langmuir competitive adsorption model. After five adsorption-desorption cycles, the materials showed high reusability, with an OFX removal efficiency of 50.16 %.
Keyword(s): Chitosan, magnetite, antibiotic, ofloxacin, adsorption
| Pages (from-to) | 540-552 |
| Journal | Vietnam Journal of Science and Technology ( VJST) |
| Volume | 63 |
| Issue number | 3 |
| Publication status | Published - Jun-2025 |
| ISBN | 2525-2518,2815-5874 |