Abstract
Innovative methods for handling industrial wastewater containing heavy metals has been receiving significant attention from researchers in recent years. Proper treatment of wastewater is compulsory to avoid the release of toxic heavy metal ions into water bodies. In this study, we developed a new adsorptive material, i.e., orange peel/acrylamide composite hydrogel for the removal of Co(II) ions from aqueous solution. The results showed that the adsorption of Co(II) by our hydrogen was well-fitted with the pseudo-second-order model. Its adsorption rate against Co(II) ions could reach up to 56 mg/g at pH 6. Further investigations are still needed to maximize the adsorption capacity of orange peel/acrylamide composite hydrogel.
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