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...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Membranes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-0375/12/2/233 |
| _version_ | 1797478134835052544 |
|---|---|
| author | Luisa Baudino Alessandro Pedico Stefano Bianco Monica Periolatto Candido Fabrizio Pirri Andrea Lamberti |
| author_facet | Luisa Baudino Alessandro Pedico Stefano Bianco Monica Periolatto Candido Fabrizio Pirri Andrea Lamberti |
| author_sort | Luisa Baudino |
| collection | DOAJ |
| 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<sub>Li</sub>/L) with an average lithium uptake of 5 mg<sub>Li</sub>/g in under half an hour of filtration time. |
| first_indexed | 2024-03-09T21:27:39Z |
| format | Article |
| id | doaj.art-8492c47a710e4ceea4d14724fea47182 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T21:27:39Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-8492c47a710e4ceea4d14724fea471822023-11-23T21:03:59ZengMDPI AGMembranes2077-03752022-02-0112223310.3390/membranes12020233Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from WaterLuisa Baudino0Alessandro Pedico1Stefano Bianco2Monica Periolatto3Candido Fabrizio Pirri4Andrea Lamberti5Politecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia (DISAT), Corso Duca Degli Abruzzi, 24, 10129 Torino, ItalyPolitecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia (DISAT), Corso Duca Degli Abruzzi, 24, 10129 Torino, ItalyPolitecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia (DISAT), Corso Duca Degli Abruzzi, 24, 10129 Torino, ItalyPolitecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia (DISAT), Corso Duca Degli Abruzzi, 24, 10129 Torino, ItalyPolitecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia (DISAT), Corso Duca Degli Abruzzi, 24, 10129 Torino, ItalyPolitecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia (DISAT), Corso Duca Degli Abruzzi, 24, 10129 Torino, ItalyThe 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<sub>Li</sub>/L) with an average lithium uptake of 5 mg<sub>Li</sub>/g in under half an hour of filtration time.https://www.mdpi.com/2077-0375/12/2/233lithium extractionraw material recoverygraphene oxideGO membranecrown ether |
| spellingShingle | Luisa Baudino Alessandro Pedico Stefano Bianco Monica Periolatto Candido Fabrizio Pirri Andrea Lamberti Crown-Ether Functionalized Graphene Oxide Membrane for Lithium Recovery from Water Membranes lithium extraction raw material recovery graphene oxide GO membrane crown ether |
| 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 | lithium extraction raw material recovery graphene oxide GO membrane crown ether |
| url | https://www.mdpi.com/2077-0375/12/2/233 |
| work_keys_str_mv | AT luisabaudino crownetherfunctionalizedgrapheneoxidemembraneforlithiumrecoveryfromwater AT alessandropedico crownetherfunctionalizedgrapheneoxidemembraneforlithiumrecoveryfromwater AT stefanobianco crownetherfunctionalizedgrapheneoxidemembraneforlithiumrecoveryfromwater AT monicaperiolatto crownetherfunctionalizedgrapheneoxidemembraneforlithiumrecoveryfromwater AT candidofabriziopirri crownetherfunctionalizedgrapheneoxidemembraneforlithiumrecoveryfromwater AT andrealamberti crownetherfunctionalizedgrapheneoxidemembraneforlithiumrecoveryfromwater |