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dc.contributor.authorMartins, Thamiris Auxiliadora Gonçalves
dc.contributor.authorde Moraes, Viviane Tavares
dc.contributor.authorEspinosa, Denise Crocce Romano
dc.contributor.authorMartins, Thamiris Auxiliadora Gonçalves
dc.contributor.authorMoraes, Viviane Tavares de
dc.contributor.authorEspinosa, Denise Crocce Romano
dc.date.accessioned2024-10-15T21:38:05Z
dc.date.available2024-10-15T21:38:05Z
dc.date.issued2024
dc.date.issued2024
dc.identifier.issn0944-1344
dc.identifier.issn0944-1344
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85195101288&doi=10.1007%2fs11356-024-33797-7&partnerID=40&md5=13da9c6554dbb56020875c09aa2575f8
dc.identifier.urihttps://repositorio.maua.br/handle/MAUA/1466
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85195101288&doi=10.1007%2fs11356-024-33797-7&partnerID=40&md5=13da9c6554dbb56020875c09aa2575f8
dc.identifier.urihttps://repositorio.maua.br/handle/MAUA/1466
dc.description.abstractPrinted circuit boards, which make up part of waste from electrical and electronic equipment, contain elements that can be economically reused, such as copper, silver, gold, and nickel, as well as metals that are harmful to the environment and health, such as lead, mercury, and cadmium. Thus, through recycling this scrap, materials that would otherwise be discarded can be reinserted as secondary raw materials to produce new consumer goods through urban mining. In this context, the synthesis of nanoparticles shows promise as it allows the reinsertion of these materials in the manufacture of new products. Therefore, this study used obsolete computer motherboards as a secondary material to obtain copper to produce nanoparticles of this metal. From a solution based on the leach liquor of this scrap, a purification route using solvent extraction was defined and applied to the real leach liquor. Applying the hydroxyoxime extractant at a dilution of 20% (v/v) in kerosene, A/O of 1/1, 298 K, and 0.25 h of contact during extraction, and stripping in H2SO4 (2 M), 298 K, 0.25 h, W/O ratio of 3/1, and two theoretical countercurrent stages, a solution containing more than 95% of the copper in the leach liquor could be obtained with less than 1% of contaminants. From this purified liquor, nanoparticles containing copper and metallic copper oxides and hydroxides were produced, with an average size of 84 nm, at pH 11, 3 h of hot stirring, volume of 0.015 L of ascorbic acid (0.50 M) and 0.015 L of precursor solution (0.03 M Cu), and temperature (343 K). Graphical Abstract: (Figure presented.) © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES
dc.description.sponsorshipUniversidade de São Paulo, USP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP, (2012/51871–9, 2019/11866–5, 2018/07461–7, 2019/09669–7)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq, (306936/2016–0)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq
dc.description.sponsorshipCAPES
dc.description.sponsorshipUSP
dc.description.sponsorshipFAPESP
dc.description.sponsorshipCNPq
dc.languageInglêspt_BR
dc.publisherSpringeren
dc.relation.ispartofEnvironmental Science and Pollution Research
dc.relation.ispartofEnvironmental Science and Pollution Research
dc.rightsAcesso Aberto
dc.rightsAcesso Aberto
dc.sourceScopusen
dc.subjectCopper Nanoparticlesen
dc.subjectPurificationen
dc.subjectRecyclingen
dc.subjectSolvent extractionen
dc.subjectUrban miningen
dc.subjectWEEEen
dc.subjectCopperen
dc.subjectElectronic Wasteen
dc.subjectMetal Nanoparticlesen
dc.subjectNanoparticlesen
dc.subjectSolventsen
dc.subjectAscorbic aciden
dc.subjectCopper oxidesen
dc.subjectLeachingen
dc.subjectMetal nanoparticlesen
dc.subjectOscillators (electronic)en
dc.subjectPrinted circuit boardsen
dc.subjectScrap metal reprocessingen
dc.subjectSynthesis (chemical)en
dc.subjectcopperen
dc.subjectmetal nanoparticleen
dc.subjectnanoparticleen
dc.subjectsolventen
dc.subjectCopper nanoparticlesen
dc.subjectCopper recoveryen
dc.subjectLeach liquorsen
dc.subjectNanoparticle synthesisen
dc.subjectScrap materialsen
dc.subjectSecondary Raw Materialsen
dc.subjectWaste from electrical and electronic equipmentsen
dc.subjectextraction methoden
dc.subjectminingen
dc.subjectpurificationen
dc.subjectrecoveryen
dc.subjectrecyclingen
dc.subjecturban areaen
dc.subjectwaste technologyen
dc.subjectchemistryen
dc.subjecte-wasteen
dc.titleCopper recovery by solvent extraction for nanoparticle synthesis from waste motherboardsen
dc.typeArtigo de Periódicopt_BR
dc.identifier.doi10.1007/s11356-024-33797-7
dc.identifier.doi10.1007/s11356-024-33797-7
dc.description.affiliationDepartment of Chemical Engineering, Polytechnic School of the University of Sao Paulo (USP), Lago St., No. 250, SP, Sao Paulo, CEP 05508-080, Brazil
dc.description.affiliationMaua Institute of Technology, Praça Maua, 1 – Maua, Sao Paulo, Sao Caetano do Sul, CEP 09580-900, Brazil
dc.description.affiliationDepartment of Chemical Engineering, Polytechnic School of the University of Sao Paulo (USP), Lago St., No. 250, SP, Sao Paulo, CEP 05508-080, Brazil
dc.description.affiliationMaua Institute of Technology, Praça Maua, 1 – Maua, Sao Paulo, Sao Caetano do Sul, CEP 09580-900, Brazil
dc.identifier.scopus2-s2.0-85195101288
dc.identifier.scopus2-s2.0-85195101288
dc.citation.issue27
dc.citation.issue27
dc.citation.epage39703
dc.citation.epage39703
dc.citation.spage39690
dc.citation.spage39690
dc.citation.volume31
dc.citation.volume31


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