Degradation of scarlet 4BS in aqueous solution using bimetallic Fe/Ni nanoparticles

► Degradation of Scarlet 4BS using Ni/Fe nanoparticles. ► 84.5% 4BS was removed in 3 h. ► Characterization of Ni/Fe nanoparticles. ► The mechanism of degradation of 4BS by Ni/Fe.