Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method

Bibliographic Details
Main Author: Gorup, Luiz F.
Publication Date: 2011
Other Authors: Longo, Elson [UNESP], Leite, Edson R., Camargo, Emerson R.
Format: Article
Language: eng
Source: Repositório Institucional da UNESP
Download full: http://hdl.handle.net/11449/123452
Summary: A new method to stabilize silver nanoparticles by the addition of ammonia is proposed. Colloidal dispersions of silver nanoparticles were synthesized by the Turkevich method using sodium citrate to reduce silver nitrate at high pH and at 90 °C. After approximately 12 min, a diluted ammonia solution was added to the reaction flask to form soluble diamine silver (I) complexes that played an important growth moderating role, making it possible to stabilize metallic silver nanoparticles with sizes as small as 1.6 nm after 17 min of reaction. Colloidal dispersions were characterized by UV-visible absorption spectroscopy, X-ray diffraction, and transmission electronic microscopy.
id UNSP_af0dc2e13bcf489b771f58379670dbb3
oai_identifier_str oai:repositorio.unesp.br:11449/123452
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich methodSilver nanoparticlesTurkevich methodGrowth and stabilityA new method to stabilize silver nanoparticles by the addition of ammonia is proposed. Colloidal dispersions of silver nanoparticles were synthesized by the Turkevich method using sodium citrate to reduce silver nitrate at high pH and at 90 °C. After approximately 12 min, a diluted ammonia solution was added to the reaction flask to form soluble diamine silver (I) complexes that played an important growth moderating role, making it possible to stabilize metallic silver nanoparticles with sizes as small as 1.6 nm after 17 min of reaction. Colloidal dispersions were characterized by UV-visible absorption spectroscopy, X-ray diffraction, and transmission electronic microscopy.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CMDMC/Cepid-INCTMNUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Bioquímica e Tecnologia Química, Instituto de Química de Araraquara, Araraquara, Rua Francisco Degni, 55, Quitandinha, CEP 14801907, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Bioquímica e Tecnologia Química, Instituto de Química de Araraquara, Araraquara, Rua Francisco Degni, 55, Quitandinha, CEP 14801907, SP, BrasilFAPESP: 2007/58891-7Universidade Estadual Paulista (Unesp)Gorup, Luiz F.Longo, Elson [UNESP]Leite, Edson R.Camargo, Emerson R.2015-05-15T13:30:13Z2015-05-15T13:30:13Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article355-358Journal of Colloid and Interface Science, v. 360, n. 2, p. 355-358, 2011.0021-9797http://hdl.handle.net/11449/12345210.1016/j.jcis.2011.04.0996980022218379418772075430406523910255985294693939848311210578810Currículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Colloid and Interface Science5.0911,221info:eu-repo/semantics/openAccess2025-05-28T05:35:07Zoai:repositorio.unesp.br:11449/123452Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-05-28T05:35:07Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
title Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
spellingShingle Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
Gorup, Luiz F.
Silver nanoparticles
Turkevich method
Growth and stability
title_short Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
title_full Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
title_fullStr Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
title_full_unstemmed Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
title_sort Moderating effect of ammonia on particle growth and stability of quasi-monodisperse silver nanoparticles synthesized by the Turkevich method
author Gorup, Luiz F.
author_facet Gorup, Luiz F.
Longo, Elson [UNESP]
Leite, Edson R.
Camargo, Emerson R.
author_role author
author2 Longo, Elson [UNESP]
Leite, Edson R.
Camargo, Emerson R.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Gorup, Luiz F.
Longo, Elson [UNESP]
Leite, Edson R.
Camargo, Emerson R.
dc.subject.por.fl_str_mv Silver nanoparticles
Turkevich method
Growth and stability
topic Silver nanoparticles
Turkevich method
Growth and stability
description A new method to stabilize silver nanoparticles by the addition of ammonia is proposed. Colloidal dispersions of silver nanoparticles were synthesized by the Turkevich method using sodium citrate to reduce silver nitrate at high pH and at 90 °C. After approximately 12 min, a diluted ammonia solution was added to the reaction flask to form soluble diamine silver (I) complexes that played an important growth moderating role, making it possible to stabilize metallic silver nanoparticles with sizes as small as 1.6 nm after 17 min of reaction. Colloidal dispersions were characterized by UV-visible absorption spectroscopy, X-ray diffraction, and transmission electronic microscopy.
publishDate 2011
dc.date.none.fl_str_mv 2011
2015-05-15T13:30:13Z
2015-05-15T13:30:13Z
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 Journal of Colloid and Interface Science, v. 360, n. 2, p. 355-358, 2011.
0021-9797
http://hdl.handle.net/11449/123452
10.1016/j.jcis.2011.04.099
6980022218379418
7720754304065239
1025598529469393
9848311210578810
identifier_str_mv Journal of Colloid and Interface Science, v. 360, n. 2, p. 355-358, 2011.
0021-9797
10.1016/j.jcis.2011.04.099
6980022218379418
7720754304065239
1025598529469393
9848311210578810
url http://hdl.handle.net/11449/123452
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Colloid and Interface Science
5.091
1,221
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 355-358
dc.source.none.fl_str_mv Currículo Lattes
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 repositoriounesp@unesp.br
_version_ 1834482562493317120

Similar Items