Green Synthesis of Iron Oxide Nanoparticles and Their Modification with CTAB for the Decolorization of Dye Reactive Blue 238

Magnetized iron oxide nanoparticles (NPs) were prepared using Eucalyptus leaf extract and then coated with CTAB (Cetrimonium bromide) to increase efficiency. The modified characterized AFM, FTIR, X-ray techniques. adsorption of the dye reactive blue RB 238 on was investigated. effect various experimental factors, such as initial concentration dye, amount adsorbent, pH temperature removal RB238 studied. best conditions for found be 298 K in an acidic medium = 3 appropriate dose adsorbent 0.15 g per 25 mg/L achieve color 90% within 60 minutes. pseudo-second-order reaction model gave results more suitable facts than pseudo-first-order model.