| 초록 |
Adsorption using organic/polymer hybrid materials is regarded as one of the most effective methods to remove heavy metal-ions from aqueous environment. And the catechol functionality has been known to exhibit strong, reversible, and non-covalent binding to metal ions such as Cu(II), Zn(II), and Fe(III). In this work, dopamine (containing catechol group) was conjugated to a polyaspartate (PASP) crosslinked gel. The swelling behavior and adsorption property for lead ion (Pb+2) of the modified PASP gel were investigated. The present PASP superabsorbent gel showed high adsorption capacity, suggesting its use as a promising hydrogel sorbent for the removal and recovery of heavy metal-ions from contaminated water and waste chemicals. |
