Towards advanced industrial waste-based magnetic activated carbons with tunable chemical, textural and magnetic properties

The control of chemical, morphological, textural and magnetic properties developed in activated carbons (MACs) from industrial food waste, was achieved. process parameters involved a sustainable optimized one-step activation route, based on the circular economy model, played an important role its influence studied, offering interesting outstanding results. Magnetite crystals were formed MACs surface obtained 400 °C to 800 while other iron species, such as metallic carbides, only at 800° C. Acid washing favored mineral matter removal presence species drastically reduced acid-washed MACs, mainly originated °C. Water-washed presented better response high temperatures (confirmed by XRD, FTIR, Raman, Mössbauer spectroscopy VSM characterization techniques). High BET area (? 822 m2/g) large micropore volume 0.30 cm3/g), reached acid washed fundamentally microporous, but some mesoporosity also observed when activating agent/precursor mass ratio (1:1) is used. It can be concluded that strategic design with objective removing specific pollutants multiple environmental applications.