Improving the sorption properties of mesoporous carbons for the removal of cobalt, nickel and manganese from spent lithium-ion batteries effluent.
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| Title: | Improving the sorption properties of mesoporous carbons for the removal of cobalt, nickel and manganese from spent lithium-ion batteries effluent. |
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| Authors: | Conte, N.1 (AUTHOR) nconte@ucm.es, Gómez, J.M.1 (AUTHOR) segojmgm@ucm.es |
| Source: | Separation & Purification Technology. Jan2024, Vol. 328, pN.PAG-N.PAG. 1p. |
| Subjects: | Lithium-ion batteries, Sorption, Silica gel, Activation (Chemistry), Conductometric analysis, Cobalt, Manganese |
| Abstract: | [Display omitted] • Chemical activation of the mesoporous carbon was carried out under mild conditions. • Sequential activation promotes the development of carboxylic acids on the surface. • Fast kinetics and high sorption capacities of metals (Co, Ni and Mn) were achieved. • Selectivity adsorption to divalent cations was risen with the chemical activation. • Sulfuric acid was effectively used to recover and preconcentrate the sorbed metals. The competitive sorption of Co2+, Li+, Ni2+, and Mn2+, strategic metals from spent lithium-ion batteries and their leachates, was studied using activated mesoporous carbons. The mesoporous carbon was synthesized by the replica method using silica gel as a template and exhibited a high surface area with an accessible pore volume due to mesopores (V meso > 95%). Fast kinetics and high sorption capacities of these metals were achieved with the chemical activation of mesoporous carbons. The surface modification of the mesoporous carbon was carried out by physical activation with O 2 at 450 °C and chemical activation under mild conditions (room temperatures) with NaClO 2 /H 2 O 2 as oxidizing agents. FTIR analysis and conductimetric titration showed that the combination of an initial physical activation step, followed by chemical functionalization, maximized the formation of carboxylic acids (from 0.2 to 0.9 meq/g), due to the complete oxidation of the weakly acidic groups. Those carbons were tested in sorption experiments of the lithium-ion battery metals in monometallic solutions, where physically activated and chemically reactivated mesoporous carbon selectively removed over 80% of Co2+, Ni2+, and Mn2+, with sorption capacities over 20 mg/g, while only 20% of Li+ was removed. This carbon stood out amongst the others studied (2 to 11-fold increase in sorption capacities depending on the metal) and was tested in multimetallic solutions, showing fast removal rates, reaching equilibrium within the first 15 min, as well as selectivity towards divalent cations (18 mg/g of Co2+) with insignificant lithium sorption (q Li = 0.33 mg/g). Desorption of metals was carried out using H 2 SO 4 , which allowed the recovery and twofold of the initial concentrations of Co, Ni, and Mn. [ABSTRACT FROM AUTHOR] |
| Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 173458326 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Improving the sorption properties of mesoporous carbons for the removal of cobalt, nickel and manganese from spent lithium-ion batteries effluent. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Conte%2C+N%2E%22">Conte, N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> nconte@ucm.es</i><br /><searchLink fieldCode="AR" term="%22Gómez%2C+J%2EM%2E%22">Gómez, J.M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> segojmgm@ucm.es</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Separation+%26+Purification+Technology%22">Separation & Purification Technology</searchLink>. Jan2024, Vol. 328, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Sorption%22">Sorption</searchLink><br /><searchLink fieldCode="DE" term="%22Silica+gel%22">Silica gel</searchLink><br /><searchLink fieldCode="DE" term="%22Activation+%28Chemistry%29%22">Activation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Conductometric+analysis%22">Conductometric analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Cobalt%22">Cobalt</searchLink><br /><searchLink fieldCode="DE" term="%22Manganese%22">Manganese</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: [Display omitted] • Chemical activation of the mesoporous carbon was carried out under mild conditions. • Sequential activation promotes the development of carboxylic acids on the surface. • Fast kinetics and high sorption capacities of metals (Co, Ni and Mn) were achieved. • Selectivity adsorption to divalent cations was risen with the chemical activation. • Sulfuric acid was effectively used to recover and preconcentrate the sorbed metals. The competitive sorption of Co2+, Li+, Ni2+, and Mn2+, strategic metals from spent lithium-ion batteries and their leachates, was studied using activated mesoporous carbons. The mesoporous carbon was synthesized by the replica method using silica gel as a template and exhibited a high surface area with an accessible pore volume due to mesopores (V meso > 95%). Fast kinetics and high sorption capacities of these metals were achieved with the chemical activation of mesoporous carbons. The surface modification of the mesoporous carbon was carried out by physical activation with O 2 at 450 °C and chemical activation under mild conditions (room temperatures) with NaClO 2 /H 2 O 2 as oxidizing agents. FTIR analysis and conductimetric titration showed that the combination of an initial physical activation step, followed by chemical functionalization, maximized the formation of carboxylic acids (from 0.2 to 0.9 meq/g), due to the complete oxidation of the weakly acidic groups. Those carbons were tested in sorption experiments of the lithium-ion battery metals in monometallic solutions, where physically activated and chemically reactivated mesoporous carbon selectively removed over 80% of Co2+, Ni2+, and Mn2+, with sorption capacities over 20 mg/g, while only 20% of Li+ was removed. This carbon stood out amongst the others studied (2 to 11-fold increase in sorption capacities depending on the metal) and was tested in multimetallic solutions, showing fast removal rates, reaching equilibrium within the first 15 min, as well as selectivity towards divalent cations (18 mg/g of Co2+) with insignificant lithium sorption (q Li = 0.33 mg/g). Desorption of metals was carried out using H 2 SO 4 , which allowed the recovery and twofold of the initial concentrations of Co, Ni, and Mn. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.seppur.2023.125095 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Lithium-ion batteries Type: general – SubjectFull: Sorption Type: general – SubjectFull: Silica gel Type: general – SubjectFull: Activation (Chemistry) Type: general – SubjectFull: Conductometric analysis Type: general – SubjectFull: Cobalt Type: general – SubjectFull: Manganese Type: general Titles: – TitleFull: Improving the sorption properties of mesoporous carbons for the removal of cobalt, nickel and manganese from spent lithium-ion batteries effluent. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Conte, N. – PersonEntity: Name: NameFull: Gómez, J.M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 13835866 Numbering: – Type: volume Value: 328 Titles: – TitleFull: Separation & Purification Technology Type: main |
| ResultId | 1 |
