Fabricated and functionalized magnetite/phenylenediamine/cellulose acetate nanocomposite for adsorptive removal of methylene blue.

The industrial revolution in textile and dying process is moving with huge steps, but the treatment of produced wastewater from this industry is a huge dilemma. This work demonstrates the preparation and utilization of cellulose acetate (CA) blended with Fe3 O4 already chemically modified with O-phenylenediamine (PDA) to prepare a novel magnetic Fe3 O4 /PDA/CA nanocomposite. This nanomaterial was aimed to use in the removal of methylene blue (MB) dye from water. The adsorption process was conducted using a batch technique and the removal process was evaluated under various experimental conditions. From this study, it was found that the values were increased from 55.8% to 88.54%, 45.5% to 84.8% and 42.56% to 76.45% by the increase of from pH 1 to 7, respectively using 10, 50 and 100 mg·L-1 . The pseudo-second-order was found to be the most fitted model to confirm that the adsorption reaction is related to a chemisorption process between the Fe3 O4 /PDA/CA nanocomposite and MB dye. The Langmuir and Freundlich models were also found to best-fitted models to reveal the formation of monolayer and multilayer of MB over Fe3 O4 /PDA/CA nanocomposite in a chemical process. The thermodynamic parameters confirm that this type of reaction is spontaneous and exothermic reaction.