Abstract
In this research, a novel montmorillonite-based composite was applied for the removal of mercury (II) from aqueous solution. A facile one-step method was employed to produce dithizone-montmorillonite (Dz-MMT) composit. The effects of several parameters such as pH value of the solution, adsorbent dose, adsorption time and the initial concentration on the adsorption onto the composite were investigated. Dz-MMT had a high uptake capacity in room temperature and could remove mercury (II) (50 mg/L) of about 90% at 90 min and only 0.5 g/L of adsorbent dose. The method was applied to the removal of mercury (II) in tap water, river water, Persian Gulf water and waste water samples from different parts of Khouzestan, Iran.
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