Exploring the functionalization ratio of mesoporous silica glass with imidazolium entities on the synthesis of supported gold nanoparticles

dc.creatorStrauss, M
dc.creatorDamasceno, JPV
dc.creatorMaroneze, CM
dc.creatorda Costa, LP
dc.creatorSigoli, FA
dc.creatorGushikem, Y
dc.creatorMazali, IO
dc.date2013
dc.dateMAR
dc.date2014-07-30T17:32:17Z
dc.date2015-11-26T17:46:33Z
dc.date2014-07-30T17:32:17Z
dc.date2015-11-26T17:46:33Z
dc.date.accessioned2018-03-29T00:29:05Z
dc.date.available2018-03-29T00:29:05Z
dc.identifierJournal Of Nanoparticle Research. Springer, v. 15, n. 3, 2013.
dc.identifier1388-0764
dc.identifierWOS:000318551300003
dc.identifier10.1007/s11051-013-1441-8
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/66439
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/66439
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1288519
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThis study describes the surface modification of porous Vycor glass (R) (PVG (R)) with ionic species based on 1-methyl-imidazolium groups, and the posterior utilization of the functional porous substrate to synthesize supported gold nanoparticles (Au NPs). The functionalization degree (amount of imidazolium groups per gram of PVG (R)) was successfully controlled by the concentration of the imidazolium-based alkoxysilane in the reaction media. The ion-exchange properties of the functional groups allowed an effective and homogeneous upload of AuCl4- throughout the monolithic PVG (R) structure, with subsequent conversion to Au NPs by thermal treatment at 823 K, which also eliminated the organic groups chemically bonded to the surface. The amount of adsorbed AuCl4- ions was shown to have influence on loading of the Au NPs while no size variation is observed, indicating that the porous environment of PVG (R) acts as a nanoreactor where the particles are formed in the confined space.
dc.description15
dc.description3
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherSpringer
dc.publisherDordrecht
dc.publisherHolanda
dc.relationJournal Of Nanoparticle Research
dc.relationJ. Nanopart. Res.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectGold nanoparticles
dc.subjectImidazolium
dc.subjectMesoporous silica
dc.subjectPVG
dc.subjectPorous Vycor Glass
dc.subjectIonic Liquids
dc.subjectSize
dc.subjectAdsorption
dc.subjectGel
dc.subjectSpectroscopy
dc.subjectComplexes
dc.subjectEthanol
dc.subjectSurface
dc.subjectAnions
dc.titleExploring the functionalization ratio of mesoporous silica glass with imidazolium entities on the synthesis of supported gold nanoparticles
dc.typeArtículos de revistas


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