Fig. 7From: Adsorption of Cadmium Ions from an Aqueous Solution on a Highly Stable Dopamine-Modified Magnetic Nano-Adsorbenta Effect of different adsorbent doses on the adsorption of Cd2+, b effect of pH on the uptake of metal ions by the adsorbents, and c variation of the adsorption capacity of Fe3O4@PDA for Cd2+ with the number of adsorption–desorption cyclesBack to article page