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Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water

The massive worldwide transition of the transport sector to electric vehicles has dramatically increased the demand for lithium. Lithium recovery by means of ion sieves or supramolecular chemistry has been extensively studied in recent years as a viable alternative approach to the most common extrac...

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Autores principales: Baudino, Luisa, Pedico, Alessandro, Bianco, Stefano, Periolatto, Monica, Pirri, Candido Fabrizio, Lamberti, Andrea
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8878177/
https://www.ncbi.nlm.nih.gov/pubmed/35207154
http://dx.doi.org/10.3390/membranes12020233
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author Baudino, Luisa
Pedico, Alessandro
Bianco, Stefano
Periolatto, Monica
Pirri, Candido Fabrizio
Lamberti, Andrea
author_facet Baudino, Luisa
Pedico, Alessandro
Bianco, Stefano
Periolatto, Monica
Pirri, Candido Fabrizio
Lamberti, Andrea
author_sort Baudino, Luisa
collection PubMed
description The massive worldwide transition of the transport sector to electric vehicles has dramatically increased the demand for lithium. Lithium recovery by means of ion sieves or supramolecular chemistry has been extensively studied in recent years as a viable alternative approach to the most common extraction processes. Graphene oxide (GO) has also already been proven to be an excellent candidate for water treatment and other membrane related applications. Herein, a nanocomposite 12-crown-4-ether functionalized GO membrane for lithium recovery by means of pressure filtration is proposed. GO flakes were via carbodiimide esterification, then a polymeric binder was added to improve the mechanical properties. The membrane was then obtained and tested on a polymeric support in a dead-end pressure setup under nitrogen gas to speed up the lithium recovery. Morphological and physico-chemical characterizations were carried out using pristine GO and functionalized GO membranes for comparison with the nanocomposite. The lithium selectivity was proven by both the conductance and ICP mass measurements on different sets of feed and stripping solutions filtrated (LiCl/HCl and other chloride salts/HCl). The membrane proposed showed promising properties in low concentrated solutions (7 mg(Li)/L) with an average lithium uptake of 5 mg(Li)/g in under half an hour of filtration time.
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spelling pubmed-88781772022-02-26 Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water Baudino, Luisa Pedico, Alessandro Bianco, Stefano Periolatto, Monica Pirri, Candido Fabrizio Lamberti, Andrea Membranes (Basel) Article The massive worldwide transition of the transport sector to electric vehicles has dramatically increased the demand for lithium. Lithium recovery by means of ion sieves or supramolecular chemistry has been extensively studied in recent years as a viable alternative approach to the most common extraction processes. Graphene oxide (GO) has also already been proven to be an excellent candidate for water treatment and other membrane related applications. Herein, a nanocomposite 12-crown-4-ether functionalized GO membrane for lithium recovery by means of pressure filtration is proposed. GO flakes were via carbodiimide esterification, then a polymeric binder was added to improve the mechanical properties. The membrane was then obtained and tested on a polymeric support in a dead-end pressure setup under nitrogen gas to speed up the lithium recovery. Morphological and physico-chemical characterizations were carried out using pristine GO and functionalized GO membranes for comparison with the nanocomposite. The lithium selectivity was proven by both the conductance and ICP mass measurements on different sets of feed and stripping solutions filtrated (LiCl/HCl and other chloride salts/HCl). The membrane proposed showed promising properties in low concentrated solutions (7 mg(Li)/L) with an average lithium uptake of 5 mg(Li)/g in under half an hour of filtration time. MDPI 2022-02-18 /pmc/articles/PMC8878177/ /pubmed/35207154 http://dx.doi.org/10.3390/membranes12020233 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Baudino, Luisa
Pedico, Alessandro
Bianco, Stefano
Periolatto, Monica
Pirri, Candido Fabrizio
Lamberti, Andrea
Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water
title Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water
title_full Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water
title_fullStr Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water
title_full_unstemmed Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water
title_short Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water
title_sort crown-ether functionalized graphene oxide membrane for lithium recovery from water
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8878177/
https://www.ncbi.nlm.nih.gov/pubmed/35207154
http://dx.doi.org/10.3390/membranes12020233
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