The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent

The stability of emulsion liquid membranes (ELMs) and their ability to extract Cr(VI) were investigated. The objective of this study is to compare different ELM formulations using combinations of two hydrophilic (Tween 20 and Tween 80) and two lipophilic (polyglycerol polyricinoleate (PGPR) and Span...

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Autores principales: Anarakdim, Katia, Gutiérrez, Gemma, Cambiella, Ángel, Senhadji-Kebiche, Ounissa, Matos, María
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7231380/
https://www.ncbi.nlm.nih.gov/pubmed/32326157
http://dx.doi.org/10.3390/membranes10040076
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author Anarakdim, Katia
Gutiérrez, Gemma
Cambiella, Ángel
Senhadji-Kebiche, Ounissa
Matos, María
author_facet Anarakdim, Katia
Gutiérrez, Gemma
Cambiella, Ángel
Senhadji-Kebiche, Ounissa
Matos, María
author_sort Anarakdim, Katia
collection PubMed
description The stability of emulsion liquid membranes (ELMs) and their ability to extract Cr(VI) were investigated. The objective of this study is to compare different ELM formulations using combinations of two hydrophilic (Tween 20 and Tween 80) and two lipophilic (polyglycerol polyricinoleate (PGPR) and Span 80) emulsifiers. TOPO (tri-n-octylphosphine oxide) as a carrier and a green solvent (sunflower oil) were used to provide high extraction efficiency of Cr(VI). All these double emulsions were characterized in droplet size distribution, zeta potential, visual inspection with a microscope, and stability. The best formulation was obtained with PGPR as the inner stabilizer and Tween 80 as the outer stabilizer, leading to Cr(VI) ion removal efficiency of up to 96%.
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spelling pubmed-72313802020-05-22 The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent Anarakdim, Katia Gutiérrez, Gemma Cambiella, Ángel Senhadji-Kebiche, Ounissa Matos, María Membranes (Basel) Article The stability of emulsion liquid membranes (ELMs) and their ability to extract Cr(VI) were investigated. The objective of this study is to compare different ELM formulations using combinations of two hydrophilic (Tween 20 and Tween 80) and two lipophilic (polyglycerol polyricinoleate (PGPR) and Span 80) emulsifiers. TOPO (tri-n-octylphosphine oxide) as a carrier and a green solvent (sunflower oil) were used to provide high extraction efficiency of Cr(VI). All these double emulsions were characterized in droplet size distribution, zeta potential, visual inspection with a microscope, and stability. The best formulation was obtained with PGPR as the inner stabilizer and Tween 80 as the outer stabilizer, leading to Cr(VI) ion removal efficiency of up to 96%. MDPI 2020-04-21 /pmc/articles/PMC7231380/ /pubmed/32326157 http://dx.doi.org/10.3390/membranes10040076 Text en © 2020 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
Anarakdim, Katia
Gutiérrez, Gemma
Cambiella, Ángel
Senhadji-Kebiche, Ounissa
Matos, María
The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent
title The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent
title_full The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent
title_fullStr The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent
title_full_unstemmed The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent
title_short The Effect of Emulsifiers on the Emulsion Stability and Extraction Efficiency of Cr(VI) Using Emulsion Liquid Membranes (ELMs) Formulated with a Green Solvent
title_sort effect of emulsifiers on the emulsion stability and extraction efficiency of cr(vi) using emulsion liquid membranes (elms) formulated with a green solvent
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7231380/
https://www.ncbi.nlm.nih.gov/pubmed/32326157
http://dx.doi.org/10.3390/membranes10040076
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