Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
Páez Hernández, María Elena
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
Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS
High-performance liquid magneto-chromatography
Synthesis, characterization, and crystal structures of n-alkyldiorganodithiophosphates RS2P(OC6H4)2
Development of a novel composite sensor based on doped pyrrole selective to nitrate ions