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Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy

2023-06Journal article Open access
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dc.contributor.authorBernardo, Maria
dc.contributor.authorLapa, Nuno
dc.contributor.authorPinto, Filomena
dc.contributor.authorNogueira, Miguel
dc.contributor.authorMatos, Inês
dc.contributor.authorVentura, Márcia
dc.contributor.authorFerraria, Ana Maria
dc.contributor.authorRego, Ana Maria Botelho do
dc.contributor.authorFonseca, Isabel Maria
dc.date.accessioned2023-08-09T15:58:09Z
dc.date.available2023-08-09T15:58:09Z
dc.date.issued2023-06
dc.description.abstractABSTRACT: Spent tire rubber-derived chars and their corresponding H3PO4 and CO2-activated chars were used as adsorbents in the recovery of Pb(II) ion and (W(VI)) oxyanion from synthetic solutions. The developed chars (both raw and activated) were thoroughly characterized to have insight about their textural and surface chemistry properties. H3PO4-activated chars presented lower surface areas than the raw chars and an acidic surface chemistry which affected the performance of these samples as they showed the lowest removals of the metallic ions. On the other hand, CO2-activated chars presented increased surface areas and increased mineral content compared to the raw chars, having presented higher uptake capacities for both Pb(II) (103-116 mg/g) and W(VI) (27-31 mg/g) ions. Cation exchange with Ca, Mg and Zn ions was appointed as a mechanism for Pb removal, as well as surface precipitation in the form of hydrocerussite (Pb-3(CO3)(2)(OH)(2)). W(VI) adsorption might have been ruled by strong electrostatic attractions between the negatively charged tungstate species and the highly positively charged carbons' surface.The results shown in this work allow concluding that the valorisation of spent tire rubber through pyrolysis and the subsequent activation of the obtained chars is an alternative and a feasible option to generate adsorbent materials with a high uptake capacity of critical metallic elements.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBernardo, Maria...et.al - Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy. In: Environmental Science and Pollution Research, 2023, vol. 30 (30), p. 74820-74837pt_PT
dc.identifier.doi10.1007/s11356-023-27689-5pt_PT
dc.identifier.eissn1614-7499
dc.identifier.issn0944-1344
dc.identifier.urihttp://hdl.handle.net/10400.9/4132
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationInstitute for Bioengineering and Biosciences
dc.relationInstitute for Bioengineering and Biosciences
dc.relation.publisherversionhttps://doi.org/10.1007/s11356-023-27689-5pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSpent tire rubberpt_PT
dc.subjectAdsorptionpt_PT
dc.subjectTungstenpt_PT
dc.subjectWaste valorizationpt_PT
dc.titleValorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleInstitute for Bioengineering and Biosciences
oaire.awardTitleInstitute for Bioengineering and Biosciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04565%2F2020/PT
oaire.citation.endPage74837pt_PT
oaire.citation.startPage74820pt_PT
oaire.citation.titleEnvironmental Science and Pollution Researchpt_PT
oaire.citation.volume30pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameBernardo
person.familyNameLapa
person.familyNamePinto
person.givenNameMaria
person.givenNameNuno
person.givenNameFilomena
person.identifier90528
person.identifier.ciencia-id1E11-A847-44DA
person.identifier.ciencia-id5A14-EADB-672D
person.identifier.orcid0000-0002-5823-6636
person.identifier.orcid0000-0001-7862-7477
person.identifier.orcid0000-0002-1014-568X
person.identifier.ridB-5187-2015
person.identifier.ridK-8456-2013
person.identifier.scopus-author-id22933828300
person.identifier.scopus-author-id6602694802
person.identifier.scopus-author-id7102740188
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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