Prussian blue caged in alginate/calcium beads as adsorbents for removal of cesium ions from contaminated water

J Hazard Mater. 2013 Aug 15:258-259:93-101. doi: 10.1016/j.jhazmat.2013.04.024. Epub 2013 Apr 24.

Abstract

Prussian blue encapsulated in alginate beads reinforced with highly dispersed carbon nanotubes were prepared for the safe removal of cesium ions from aqueous solutions. Equilibrium and kinetic studies were conducted using different models and the goodness of mathematical fitting of the experimental data on the adsorption isotherms was in the order Langmuir>Freundlich, and that of the kinetic models were in the order of pseudo second order>pseudo first order. Fixed bed adsorption column analysis indicated that the beads can be used for large scale treatment of cesium contaminated water.

MeSH terms

  • Adsorption
  • Alginates / chemistry*
  • Calcium / chemistry*
  • Cations, Monovalent
  • Cesium / chemistry
  • Cesium / isolation & purification*
  • Coloring Agents
  • Ferrocyanides / chemistry*
  • Kinetics
  • Temperature
  • Water Pollutants, Chemical / chemistry*
  • Water Pollutants, Chemical / isolation & purification

Substances

  • Alginates
  • Cations, Monovalent
  • Coloring Agents
  • Ferrocyanides
  • Water Pollutants, Chemical
  • Cesium
  • Calcium
  • ferric ferrocyanide