Synthesis And Characterization Of Nano-magnetic Material ‎based On (carbon Nanotubes / Nickel Ferrite): Application For ‎the Removal Of Methyl Orange Dye From Contaminated Water ‎

This work aims the synthesis of (DWNTCs / NiFe2O4) by refluxing ‎process. Herein, the synthesized adsorbent was characterized via ‎Fourrier Transform Infrared Spectroscopy (FTIR), X-ray ‎diffraction (DRX), BET, zeta potential and transmission electron ‎microscopy (TEM), where the adsorption of methyl orange on ‎‎(DWNTCs / NiFe2O4) has been carried out by studying the ‎adsorption kinetics, pH, mass and the initial concentration. The ‎results indicated that the maximum adsorption rate is 7.77 mg.g-1 ‎at pH 5 with 100 mg of (DWNTCs / NiFe2O4), and an initial ‎orange methyl concentration of 10 mg.l-1. In addition, the ‎adsorption process describes a second-order kinetic model, ‎where the modeling of adsorption isotherms showed that the ‎Freundlich one seem to be the adequat model describing the ‎adsorption process with R2 = 0.97.‎