One-step preparation of silver nanoparticles confined in functionalized-free SBA-15 channels

dc.creatorMaroneze, CM
dc.creatorda Costa, LP
dc.creatorSigoli, FA
dc.creatorGushikem, Y
dc.creatorMazali, IO
dc.date2010
dc.dateOCT
dc.date2014-11-13T20:27:31Z
dc.date2015-11-26T17:11:24Z
dc.date2014-11-13T20:27:31Z
dc.date2015-11-26T17:11:24Z
dc.date.accessioned2018-03-28T23:59:54Z
dc.date.available2018-03-28T23:59:54Z
dc.identifierSynthetic Metals. Elsevier Science Sa, v. 160, n. 19-20, n. 2099, n. 2103, 2010.
dc.identifier0379-6779
dc.identifierWOS:000283681900009
dc.identifier10.1016/j.synthmet.2010.07.037
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/81761
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/81761
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/81761
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281091
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionSupported Ag nanoparticles were successfully prepared by a one-step in situ procedure within channels of SBA-15 mesoporous silica. The reaction was carried out in N,N-dimethylformamide (DMF) at 25 C with no need for silica surface functionalization or demanding time-consuming steps, and presents important advantages over the usual method. The small-angle X-ray scattering (SAXS) pattern of SBA-15 presents well-defined reflections associated with P6mm hexagonal symmetry. TEM micrographs of supported Ag nanoparticles (SBA-15/Ag) clearly show the presence of spheroidal and elongated Ag nanoparticles that are confirmed by surface plasmon resonance band in the UV-vis absorption spectrum. No evidence of Ag nanoparticle agglomeration was observed throughout the inorganic matrix. Ag nanoparticle formation within channels of SBA-15 decreases its specific surface area and total pore volume, as evidenced by nitrogen adsorption-desorption isotherms, with no damage to the silica framework. The method shows itself to be very efficient, fast and convenient for the synthesis of supported Ag nanoparticles in SBA-15 channels. (C) 2010 Elsevier B.V. All rights reserved.
dc.description160
dc.description19-20
dc.description2099
dc.description2103
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherElsevier Science Sa
dc.publisherLausanne
dc.publisherSuíça
dc.relationSynthetic Metals
dc.relationSynth. Met.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectMesoporous silica
dc.subjectSBA-15
dc.subjectSupported nanoparticles
dc.subjectSilver nanoparticles
dc.subjectMesoporous Silica
dc.subjectGold Nanorods
dc.subjectOptical-properties
dc.subjectN,n-dimethylformamide
dc.subjectDeposition
dc.subjectCopolymer
dc.subjectTriblock
dc.subjectSize
dc.titleOne-step preparation of silver nanoparticles confined in functionalized-free SBA-15 channels
dc.typeArtículos de revistas


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