Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent

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...

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Autores principales: Ferreira, Thania Alexandra, Rodriguez, Jose Antonio, Paez-Hernandez, María Elena, Guevara-Lara, Alfredo, Barrado, Enrique, Hernandez, Prisciliano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459042/
https://www.ncbi.nlm.nih.gov/pubmed/28772865
http://dx.doi.org/10.3390/ma10050502
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author Ferreira, Thania Alexandra
Rodriguez, Jose Antonio
Paez-Hernandez, María Elena
Guevara-Lara, Alfredo
Barrado, Enrique
Hernandez, Prisciliano
author_facet Ferreira, Thania Alexandra
Rodriguez, Jose Antonio
Paez-Hernandez, María Elena
Guevara-Lara, Alfredo
Barrado, Enrique
Hernandez, Prisciliano
author_sort Ferreira, Thania Alexandra
collection PubMed
description 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.
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spelling pubmed-54590422017-07-28 Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent Ferreira, Thania Alexandra Rodriguez, Jose Antonio Paez-Hernandez, María Elena Guevara-Lara, Alfredo Barrado, Enrique Hernandez, Prisciliano Materials (Basel) Article 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. MDPI 2017-05-06 /pmc/articles/PMC5459042/ /pubmed/28772865 http://dx.doi.org/10.3390/ma10050502 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ferreira, Thania Alexandra
Rodriguez, Jose Antonio
Paez-Hernandez, María Elena
Guevara-Lara, Alfredo
Barrado, Enrique
Hernandez, Prisciliano
Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
title Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
title_full Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
title_fullStr Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
title_full_unstemmed Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
title_short Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent
title_sort chromium(vi) removal from aqueous solution by magnetite coated by a polymeric ionic liquid-based adsorbent
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459042/
https://www.ncbi.nlm.nih.gov/pubmed/28772865
http://dx.doi.org/10.3390/ma10050502
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