Adsorption of Cu(II) and Pb(II) onto diethylenetriamine-bacterial cellulose

Diethylenetriamine-bacterial cellulose (EABC) was synthesized by amination with diethylenetriamine on bacterial cellulose (BC). Its adsorption properties for Cu(II) and Pb(II) were investigated. The parameters affecting the metal ions adsorption, such as contact time, solution pH, and initial metal ions concentration have been investigated. The adsorption kinetics and adsorption isotherms were further studied. The results show that the adsorption rate could be well fitted by pseudo-second-order rate model, and adsorption isotherm could be described by the Langmuir model. The regeneration of EABC was also studied. This study provides the relatively comprehensive data for the EABC application to the removal of metal ion in the wastewater. Crown Copyright (C) 2008 Published by Elsevier Ltd. Ail rights reserved.