Figure 4
From: Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg2+ removal
Adsorption kinetics. (a) Hg2+ adsorption kinetics of GO, MGO, and thiol-functionalized MGO, respectively. (b) The adsorption kinetics of thiol-functionalized MGO fits with the pseudo-second-order kinetics (initial concentration, 10 mg l-1).