Hybrid Mesoporous Bifunctional Adsorbents of PbII and CdII Ions from Aqueous Solution at Ambient Temperature.

adsorption process by two adsorbents was more consistent with the pseudo-second-order model. Besides, the adsorption isotherms fit well the Freundlich model. Additionally, high adsorption efficiencies were attained at the pH of each metal solution, around 5.3 for lead and 6.1 for cadmium. Moreover, the reuse performance shows the possibility of efficiently reusing these adsorbents even after three cycles, which means that the synergic effect is also maintained.