In this work, an activated carbon sample with a high adsorptive performance for the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) was prepared from queen palm endocarp ( Syagrus romanzoffiana ) by pyrolysis process. The presented XRD pattern related to graphite and functional groups such as C–H, C?O, O–H. material particles highly-porous structure, being beneficial adsorption showed remarkab...