Original Articles: 2014 Vol: 6 Issue: 3
Research on preparation of modified polyacrylamide-gel and its performance of removing lead from aqueous solution
According to the Mannich-Reaction, a kind of chelating hydrogel grafted with dithizone was prepared from polyacrylam (PAM), formaldehyde and dithizone. And the optimum adsorption condition of disposing Pb (II) from aqueous solution was studied. The result indicated that at 30Ã¢Â„Âƒ, pH=6-7,0.5g of the chelating hydrogel grafted with dithizone processed 10mg/L 100mL Pb (II) solution for 2h, and then 99.5% of Pb (II) was removed.