Abstract
Abstract A new chelating resin DVB-MA-HDA modified with hydroxamic acid groups was prepared for the fast removal of Ni 2+ from water. SEM, BET, elemental analysis, FT-IR spectroscopy and XPS were used to characterize this new adsorbent. Batch adsorption experiment indicated that the equilibrium adsorption capacity of DVB-MA-HD for Ni 2+ was more than 130 mg/g, and the adsorption isotherm can be well fitted by the Langmuir model. The adsorption kinetic curve indicates that more than 60% of the adsorption amount of Ni 2+ at equilibrium occurred within the initial 20 min. 0.1 mol/L EDTA solution could desorb Ni 2+ from DVB-MA-HDA effectively.
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