Abstract
This study was carried out to develop a carbamide-based dithiocarbamate (CDTC) chelator for the removal of heavy metal ions from wastewater. Its structural properties were characterized by FT-IR, 1H NMR and 13C NMR. Results confirmed the functional groups of HNC(S)S existed. The adsorption isotherms showed CDTC had a high adsorption capability for Zn (119.8mg/g) and Cu (63.1mg/g). It exhibited a distinctive selectivity for the removal of metal ions (Cu2+>Zn2+>Cr3+>Pb2+>Cd2+) as they coexisted. The influence of initial pH of wastewater for the removal efficiency of metal ions was also investigated and a pH>7 was preferred.
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