Magnetic Fe(2)MO(4) (M:Fe, Mn) activated carbons: fabrication, characterization and heterogeneous Fenton oxidation of methyl orange.
We present a simple and efficient method for the fabrication of magnetic Fe(2)MO(4) (M:Fe and Mn) activated carbons (Fe(2)MO(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(2)MnO(4)/AC-H showed higher catalytic activity in the methyl orange oxidation than Fe(3)O(4)/AC-H. The effect of operational parameters (pH, catalyst loading H(2)O(2) dosage and initial MO concentration) on degradation performance of the oxidation process was investigated. Stability and reusability of selected catalyst were also tested.
Nguyen
Thi Dung
TD
Institute of Chemical Technology, Vietnamese Academy of Science and Technology, 01 Mac Dinh Chi, District 1, Ho Chi Minh, Viet Nam.
Phan
Ngoc Hoa
NH
Do
Manh Huy
MH
Ngo
Kim Tham
KT
D000327:Adsorption; D001391:Azo Compounds / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D058085:Iron Compounds / Q000737:chemistry*; D008280:Magnetics; D008855:Microscopy, Electron, Scanning; D009584:Nitrogen / Q000737:chemistry; D010084:Oxidation-Reduction; D013056:Spectrophotometry, Ultraviolet; D014961:X-Ray Diffraction
D001391:Azo Compounds; D058085:Iron Compounds; C100258:methyl orange; D002244:Carbon; D009584:Nitrogen