Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s40831-018-0187-z http://hdl.handle.net/11449/160526 |
Resumo: | Radiographic films, widely used in medical and dental diagnosis, are an excellent source of silver (Ag), due to their content of light-sensitive Ag compounds. After their use, the films are commonly incorrectly thrown away in the regular trash, causing potential environmental damage. Thus, sustainable methods for recovering Ag from discarded radiographic films are desirable for economic reasons and environmental preservation. In this study, we performed the Ag recovery from waste radiographic films and carried out its structural, chemical, and morphological characterization. First, a solution of commercial bleach, based on sodium hypochlorite (NaClO), was used to separate Ag from radiographic films. Then, a microwave-assisted hydrothermal method was applied to produce nanometric metallic Ag using sucrose as a green reductant and sodium hydroxide (NaOH). The obtained product was composed of relatively high purity (similar to 97%) nanostructured Ag (NS-Ag). Thus, the proposed procedure was efficient, and a promising approach for Ag recovery from radiographic films since the obtained NS-Ag might be used in a wide range of technological applications. |
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Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal MethodSilver recoveryNanohydrometallurgySustainabilityRadiographic plateGreen reductantRadiographic films, widely used in medical and dental diagnosis, are an excellent source of silver (Ag), due to their content of light-sensitive Ag compounds. After their use, the films are commonly incorrectly thrown away in the regular trash, causing potential environmental damage. Thus, sustainable methods for recovering Ag from discarded radiographic films are desirable for economic reasons and environmental preservation. In this study, we performed the Ag recovery from waste radiographic films and carried out its structural, chemical, and morphological characterization. First, a solution of commercial bleach, based on sodium hypochlorite (NaClO), was used to separate Ag from radiographic films. Then, a microwave-assisted hydrothermal method was applied to produce nanometric metallic Ag using sucrose as a green reductant and sodium hydroxide (NaOH). The obtained product was composed of relatively high purity (similar to 97%) nanostructured Ag (NS-Ag). Thus, the proposed procedure was efficient, and a promising approach for Ag recovery from radiographic films since the obtained NS-Ag might be used in a wide range of technological applications.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Sao Paulo State Univ, Lab Mat Sustainabil LabMatSus, Ibilce, Unesp, R Cristovao Colombo 2265, BR-15054000 Sao Jose Do Rio Preto, SP, BrazilSao Paulo State Univ, Lab Mat Sustainabil LabMatSus, Ibilce, Unesp, R Cristovao Colombo 2265, BR-15054000 Sao Jose Do Rio Preto, SP, BrazilFAPESP: 2017/01267-1FAPESP: 2017/13230-5CNPq: 42591SpringerUniversidade Estadual Paulista (Unesp)Sa, Bruna S. [UNESP]Zito, Cecilia A. [UNESP]Perfecto, Tarcisio M. [UNESP]Volanti, Diogo P. [UNESP]2018-11-26T16:04:51Z2018-11-26T16:04:51Z2018-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article407-411application/pdfhttp://dx.doi.org/10.1007/s40831-018-0187-zJournal Of Sustainable Metallurgy. New York: Springer, v. 4, n. 3, p. 407-411, 2018.2199-3823http://hdl.handle.net/11449/16052610.1007/s40831-018-0187-zWOS:000442659000010WOS000442659000010.pdf23547399804067250000-0001-9315-9392Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Sustainable Metallurgyinfo:eu-repo/semantics/openAccess2024-01-08T06:27:14Zoai:repositorio.unesp.br:11449/160526Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-08T06:27:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method |
title |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method |
spellingShingle |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method Sa, Bruna S. [UNESP] Silver recovery Nanohydrometallurgy Sustainability Radiographic plate Green reductant |
title_short |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method |
title_full |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method |
title_fullStr |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method |
title_full_unstemmed |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method |
title_sort |
Production of Nanostructured Silver from Waste Radiographic Films Using a Microwave-Assisted Hydrothermal Method |
author |
Sa, Bruna S. [UNESP] |
author_facet |
Sa, Bruna S. [UNESP] Zito, Cecilia A. [UNESP] Perfecto, Tarcisio M. [UNESP] Volanti, Diogo P. [UNESP] |
author_role |
author |
author2 |
Zito, Cecilia A. [UNESP] Perfecto, Tarcisio M. [UNESP] Volanti, Diogo P. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Sa, Bruna S. [UNESP] Zito, Cecilia A. [UNESP] Perfecto, Tarcisio M. [UNESP] Volanti, Diogo P. [UNESP] |
dc.subject.por.fl_str_mv |
Silver recovery Nanohydrometallurgy Sustainability Radiographic plate Green reductant |
topic |
Silver recovery Nanohydrometallurgy Sustainability Radiographic plate Green reductant |
description |
Radiographic films, widely used in medical and dental diagnosis, are an excellent source of silver (Ag), due to their content of light-sensitive Ag compounds. After their use, the films are commonly incorrectly thrown away in the regular trash, causing potential environmental damage. Thus, sustainable methods for recovering Ag from discarded radiographic films are desirable for economic reasons and environmental preservation. In this study, we performed the Ag recovery from waste radiographic films and carried out its structural, chemical, and morphological characterization. First, a solution of commercial bleach, based on sodium hypochlorite (NaClO), was used to separate Ag from radiographic films. Then, a microwave-assisted hydrothermal method was applied to produce nanometric metallic Ag using sucrose as a green reductant and sodium hydroxide (NaOH). The obtained product was composed of relatively high purity (similar to 97%) nanostructured Ag (NS-Ag). Thus, the proposed procedure was efficient, and a promising approach for Ag recovery from radiographic films since the obtained NS-Ag might be used in a wide range of technological applications. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T16:04:51Z 2018-11-26T16:04:51Z 2018-09-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s40831-018-0187-z Journal Of Sustainable Metallurgy. New York: Springer, v. 4, n. 3, p. 407-411, 2018. 2199-3823 http://hdl.handle.net/11449/160526 10.1007/s40831-018-0187-z WOS:000442659000010 WOS000442659000010.pdf 2354739980406725 0000-0001-9315-9392 |
url |
http://dx.doi.org/10.1007/s40831-018-0187-z http://hdl.handle.net/11449/160526 |
identifier_str_mv |
Journal Of Sustainable Metallurgy. New York: Springer, v. 4, n. 3, p. 407-411, 2018. 2199-3823 10.1007/s40831-018-0187-z WOS:000442659000010 WOS000442659000010.pdf 2354739980406725 0000-0001-9315-9392 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Sustainable Metallurgy |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
407-411 application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803650203856666624 |