Methylene blue dye removal using a nanocomposite prepared from CoFe 2 O 4 − enriched activated carbon aided with artificial neural network analysis

at 50 °C. Kinetic studies suggested pseudo-second-order kinetics; with the intra-particle diffusion suggesting that the film diffusion controlled the rate limiting steps. According to thermodynamic parameters, sorption is a spontaneous physical adsorption mechanism. The study confirms the potential of CeAC as a reliable and efficient adsorbent to eliminate the cationic dye MB from wastewater.