Batch Adsorption Studies of Natural Composite Hydrogel for Removal of Co(II) Ions

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