Abstract
We present a simple and efficient method for the fabrication of magnetic Fe 2MO 4 (M:Fe and Mn) activated carbons (Fe 2MO 4/AC-H, M:Fe and Mn) by impregnating the activated carbon with simultaneous magnetic precursor and carbon modifying agent followed by calcination. The obtained samples were characterized by nitrogen adsorption isotherms, X-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM), and the catalytic activity in heterogeneous Fenton oxidation of methyl orange (MO) was evaluated. The resulting Fe 2MnO 4/AC-H showed higher catalytic activity in the methyl orange oxidation than Fe 3O 4/AC-H. The effect of operational parameters (pH, catalyst loading H 2O 2 dosage and initial MO concentration) on degradation performance of the oxidation process was investigated. Stability and reusability of selected catalyst were also tested.
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