dc.contributor.author | Martins, Thamiris Auxiliadora Gonçalves | |
dc.contributor.author | de Moraes, Viviane Tavares | |
dc.contributor.author | Espinosa, Denise Crocce Romano | |
dc.contributor.author | Martins, Thamiris Auxiliadora Gonçalves | |
dc.contributor.author | Moraes, Viviane Tavares de | |
dc.contributor.author | Espinosa, Denise Crocce Romano | |
dc.date.accessioned | 2024-10-15T21:38:05Z | |
dc.date.available | 2024-10-15T21:38:05Z | |
dc.date.issued | 2024 | |
dc.date.issued | 2024 | |
dc.identifier.issn | 0944-1344 | |
dc.identifier.issn | 0944-1344 | |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85195101288&doi=10.1007%2fs11356-024-33797-7&partnerID=40&md5=13da9c6554dbb56020875c09aa2575f8 | |
dc.identifier.uri | https://repositorio.maua.br/handle/MAUA/1466 | |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85195101288&doi=10.1007%2fs11356-024-33797-7&partnerID=40&md5=13da9c6554dbb56020875c09aa2575f8 | |
dc.identifier.uri | https://repositorio.maua.br/handle/MAUA/1466 | |
dc.description.abstract | Printed 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.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES | |
dc.description.sponsorship | Universidade de São Paulo, USP | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP, (2012/51871–9, 2019/11866–5, 2018/07461–7, 2019/09669–7) | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP | |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq, (306936/2016–0) | |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq | |
dc.description.sponsorship | CAPES | |
dc.description.sponsorship | USP | |
dc.description.sponsorship | FAPESP | |
dc.description.sponsorship | CNPq | |
dc.language | Inglês | pt_BR |
dc.publisher | Springer | en |
dc.relation.ispartof | Environmental Science and Pollution Research | |
dc.relation.ispartof | Environmental Science and Pollution Research | |
dc.rights | Acesso Aberto | |
dc.rights | Acesso Aberto | |
dc.source | Scopus | en |
dc.subject | Copper Nanoparticles | en |
dc.subject | Purification | en |
dc.subject | Recycling | en |
dc.subject | Solvent extraction | en |
dc.subject | Urban mining | en |
dc.subject | WEEE | en |
dc.subject | Copper | en |
dc.subject | Electronic Waste | en |
dc.subject | Metal Nanoparticles | en |
dc.subject | Nanoparticles | en |
dc.subject | Solvents | en |
dc.subject | Ascorbic acid | en |
dc.subject | Copper oxides | en |
dc.subject | Leaching | en |
dc.subject | Metal nanoparticles | en |
dc.subject | Oscillators (electronic) | en |
dc.subject | Printed circuit boards | en |
dc.subject | Scrap metal reprocessing | en |
dc.subject | Synthesis (chemical) | en |
dc.subject | copper | en |
dc.subject | metal nanoparticle | en |
dc.subject | nanoparticle | en |
dc.subject | solvent | en |
dc.subject | Copper nanoparticles | en |
dc.subject | Copper recovery | en |
dc.subject | Leach liquors | en |
dc.subject | Nanoparticle synthesis | en |
dc.subject | Scrap materials | en |
dc.subject | Secondary Raw Materials | en |
dc.subject | Waste from electrical and electronic equipments | en |
dc.subject | extraction method | en |
dc.subject | mining | en |
dc.subject | purification | en |
dc.subject | recovery | en |
dc.subject | recycling | en |
dc.subject | urban area | en |
dc.subject | waste technology | en |
dc.subject | chemistry | en |
dc.subject | e-waste | en |
dc.title | Copper recovery by solvent extraction for nanoparticle synthesis from waste motherboards | en |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.doi | 10.1007/s11356-024-33797-7 | |
dc.identifier.doi | 10.1007/s11356-024-33797-7 | |
dc.description.affiliation | Department 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.affiliation | Maua Institute of Technology, Praça Maua, 1 – Maua, Sao Paulo, Sao Caetano do Sul, CEP 09580-900, Brazil | |
dc.description.affiliation | Department 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.affiliation | Maua Institute of Technology, Praça Maua, 1 – Maua, Sao Paulo, Sao Caetano do Sul, CEP 09580-900, Brazil | |
dc.identifier.scopus | 2-s2.0-85195101288 | |
dc.identifier.scopus | 2-s2.0-85195101288 | |
dc.citation.issue | 27 | |
dc.citation.issue | 27 | |
dc.citation.epage | 39703 | |
dc.citation.epage | 39703 | |
dc.citation.spage | 39690 | |
dc.citation.spage | 39690 | |
dc.citation.volume | 31 | |
dc.citation.volume | 31 | |