| Summary: | This paper presents a novel approach to remove ciprofloxacin from an aqueous solution using Fe3O4/C material by adsorption and then followed by a degradation process using several advanced oxidation technologies, i.e., heterogeneous Fenton and catalytic ozonation. Porous carbon material was synthesized through several stages, i.e., polymerization of resorcinol-formaldehyde and carbonization (800 °C). The properties of porous carbon (blank carbon and Fe/C) were characterized by N2-sorption analyzer, SEM-EDX, XRD, and TGA. The adsorption isotherm data were well described by the Langmuir isotherm model with ciprofloxacin uptake up to 208.31 mg g-1 and 189.38 mg g-1 at 30°C by Fe/C and blank carbon material, respectively. The maximum uptake was influenced by adsorption temperature and mesopore volume of material. After adsorbing the ciprofloxacin, the Fe/C material was contacted with H2O2 and ozone to produce hydroxyl radicals (OH*). The result showed that ciprofloxacin was degraded about 99.7% within 120 min at 30°C through heterogeneous Fenton oxidation. The degradation performance for the other two oxidation processes: catalytic ozonation and combined ozonation-Fenton (O3/H2O2), has been explored as well. The process using O3/H2O2 could degrade ciprofloxacin quickly. In addition, Fe/C material could be reused during cyclability test without significantly reducing the catalytic activity.
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