Ciprofloxacin (CIP) is one of the most common antibiotics for treating bacterial infection. The presence of ciprofloxacin in water environment has adverse effects on human health. Multi-walled carbon nanotube (MWCNT) is a promising technology for water and wastewater treatment. However, the lake of suitable catalysts limits its efficiency in the removal of pollutants. In this study, magnetic Fe3O4/MWCNTs composite were prepared and then the effect of magnetic Fe3O4/MWCNT composite as a heterogeneous Fenton catalyst in ciprofloxacin removal from synthetic wastewater was studied. Results showed that the heterogeneous Fenton process (HFP) efficiency decreased significantly with increasing pH. Moreover, by increasing CIF concentration the process efficiency decreased. The maximum removal efficiency of CIP was equal to 94% and was achieved at 2 g/L of magnetic Fe3O4/MWCNT composite. These findings suggested that magnetic Fe3O4/MWCNTs composite acts an effective catalyst in HFP for removing CIF from wastewater.
