Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
Guevara Lara, Alfredo
2017
T.A. Ferreira, J.A. Rodriguez, M.E. Paez-Hernandez, A. Guevara-Lara, E. Barrado, P. Hernandez. Chromium(VI) removal from aqueous solution by magnetite coated by a polymeric ionic liquid-based adsorbent. Materials 10 (2017) 502; doi:10.3390/ma10050502, http://www.mdpi.com/1996-1944/10/5/502
Abstract
An evaluation of the chromium(VI) adsorption capacity of four magnetite sorbents coated with a polymer phase containing polymethacrylic acid or polyallyl-3-methylimidazolium is presented. Factors that influence the chromium(VI) removal such as solution pH and contact time were investigated in batch experiments and in stirred tank reactor mode. Affinity and rate constants increased with the molar ratio of the imidazolium. The highest adsorption was obtained at pH 2.0 due to the contribution of electrostatic interactions.
Artículos relacionados
Chemical Reactivity of Atrazine Employing the Fukui Function
Do Spiroarsoranes Exhibit Polytopal Equilibrium in Solution?
Morphological and magnetic properties of cobalt nanoclusters electrodeposited onto HOPG
Mercury Ions Removal from Aqueous Solution Using an Activated Composite Membrane