Fe-doped phosphorene also interacts with iAs III species, displaying Eads values between 1.1 and 2.0 eV, where a bidentate complex is observed for the most stable conformation . For graphene and carbonyl-functionalized graphene, the adsorption of iAs III reaches adsorption energies of 0.3 and 0.5 eV ; these results reflect the improvement of the stabilization and the effectiveness for the arsenical removal oxidating the adsorbent surface.