This research aims to synthesize NiFe2O4/activated carbon@ZnO composite used in the adsorption and degradation process of Congo red dye. The synthesized product was characterized using XRD, VSM and UV-Vis DRS instruments against Congo red dye in various pH, dye concentration, and contact time. The synthesis of the NiFe2O4/activated carbon@ZnO composite was carried out using precipitation method…