Table of Contents
Journal of Polymers
Volume 2013 (2013), Article ID 309136, 9 pages
http://dx.doi.org/10.1155/2013/309136
Research Article

Porous and Cross-Linked Cellulose Beads for Toxic Metal Ion Removal: Hg(II) Ions

Department of Materials Engineering, Defence Institute of Advanced Technology (DU), Girinagar, Pune 411025, India

Received 25 March 2013; Revised 29 July 2013; Accepted 10 August 2013

Academic Editor: Ridvan Say

Copyright © 2013 Renuka R. Gonte et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Mercury is a highly toxic and hazardous pollutant even in trace quantity which poses a major threat to the ecosystem on deposition in the environment. Removal of mercury from aqueous systems has been a subject of immense interest for researchers. The synthesis of highly cross-linked cellulose beads embedded with ferric oxide for removal of Hg(II) ions from aqueous systems has been investigated. The beads were synthesized by solution polymerization technique. The impact of solution pH, ferric oxide content, and initial concentration of Hg(II) ions on the uptake of Hg(II) ions revealed that maximum adsorption occurs at pH 6.0 with beads having 10 wt% Fe2O3 content. Equilibrium adsorption of Hg(II) ions followed the Langmuir isotherm model. Adsorption was observed to follow pseudo second-order kinetic model and intraparticle diffusion model.