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Rezonance površinskih plazmona organosola srebra - eksperimentalna i teorijska ispitivanja

dc.creatorVukoje, Ivana
dc.creatorBožanić, Dušan
dc.creatorDžunuzović, Jasna
dc.creatorBogdanović, Una
dc.creatorVodnik, Vesna
dc.date.accessioned2019-01-30T17:31:16Z
dc.date.available2019-01-30T17:31:16Z
dc.date.issued2012
dc.identifier.issn0367-598X
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1045
dc.description.abstractThe aim of this study was to investigate and compare the changes in surface plasmon resonance (SPR) of silver (Ag) hydrosol and organosols obtained by experimental and theoretical approaches. Silver nanoparticles (Ag NPs) of 5±1.5 nm in diameter were prepared in water by reduction of silver nitrate with sodium borohydride. Nanoparticles were subsequently transferred into different organic solvents (chloroform, hexane, toluene, 1,2-di- chlorobenzene) using oleylamine as a transfer agent. These solvents were chosen because of the differences in their refractive indices. Using UV-Vis absorption spectrophotometry and transmission electron microscopy (TEM), we confirmed that there were no shape and size changes of the nanoparticles upon the transfer to the organic phase. The absorption spectra of the obtained Ag organosols showed changes only in the position of the SPR band depending on the dielectric property of the used solvent. To analyze these changes, absorption spectra were modelled using Mie theory for small spherical particles. The experimental and theoretical resonance values were compared with those predicted by the Drude model and its limitations in the analysis of absorption behavior of Ag NPs in organic solvents were briefly discussed.en
dc.description.abstractCilj ovog rada je eksperimentalno i teorijsko ispitivanje i upoređivanje pro- mena površinskih plazmona nanočestica srebra u vodi i organskim rastvaračima. Nanočestice srebra prečnika 5±1,5 nm sintetisane su u vodi redukcijom srebro nitrata pomoću natrijum borhidrida. Nakon toga, nanočestice su prebačene u različite organske rastvarače (hloroform, heksan, toluen i 1,2-dihlorbenzen) pomoću oleilamina. Upotrebljeni rastvarači izabrani su na osnovu razlike u indeksima pre- lamanja. Na osnovu UV-Vis apsorpcione spektrofotometrije i transmisione elektronske mikroskopije (TEM) potvrđeno je da nema promena u obliku i veličini čes- tica nakon transfera u organske rastvarače. Apsorpcioni spektri nanočestica srebra u različitim rastvaračima pokazuju promene u položaju površinskih plazmona na osnovu razlike u dielektričnim karakteristikama upotrebljenih rastvarača. Za analizu ovih promena eksperimentalni apsorpcioni spektri su modelovani pomoću Mie teorije za male sferne čestice. Eksperimentalne i teorijske vrednosti položaja površinskih plazmona nanočestica srebra upoređivane su sa Drude teorijom i diskutovana su ograničenja primene same teorije na ponašanja nanočestica srebra u organskim rastvaračima.sr
dc.publisherAssociation of Chemical Engineers of Serbia
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172056/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS//
dc.rightsopenAccess
dc.sourceHemijska industrija
dc.subjectsilver nanoparticlesen
dc.subjectorganosolen
dc.subjectMie theoryen
dc.subjectDrude modelen
dc.subjectnanočestice srebrasr
dc.subjectorganosolsr
dc.subjectMie teorijasr
dc.subjectDrude modelsr
dc.titleSurface plasmon resonance of Ag organosols: Experimental and theoretical investigationsen
dc.titleRezonance površinskih plazmona organosola srebra - eksperimentalna i teorijska ispitivanjasr
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractБогдановић, Уна; Вукоје, Ивана; Джунузовић, Јасна; Божанић, Душан; Водник, Весна В.; Резонанце површинских плазмона органосола сребра - експериментална и теоријска испитивања; Резонанце површинских плазмона органосола сребра - експериментална и теоријска испитивања;
dc.citation.volume66
dc.citation.issue6
dc.citation.spage805
dc.citation.epage812
dc.citation.other66(6): 805-812
dc.citation.rankM23
dc.identifier.doi10.2298/HEMIND120112028V
dc.identifier.rcubConv_428
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs//bitstream/id/7606/1043.pdf
dc.identifier.scopus2-s2.0-84871703983
dc.identifier.wos000315368700002
dc.type.versionpublishedVersion


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