Surface plasmon resonance of Ag organosols: Experimental and theoretical investigations
Apstrakt
The 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-dichlorobenzene) 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.
Ključne reči:
silver nanoparticles / organosol / Mie theory / Drude modelIzvor:
Hemijska industrija, 2012, 66, 6, 805-812Finansiranje / projekti:
- Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Uticaj veličine, oblika i strukture nanočestica na njihova svojstva i svojstva nanokompozita (RS-MESTD-Basic Research (BR or ON)-172056)
DOI: 10.2298/HEMIND120112028V
ISSN: 0367-598X
WoS: 000315368700002
Scopus: 2-s2.0-84871703983
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Vukoje, Ivana D. AU - Božanić, Dušan K. AU - Džunuzović, Jasna V. AU - Bogdanović, Una AU - Vodnik, Vesna PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5337 AB - The 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-dichlorobenzene) 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. T2 - Hemijska industrija T1 - Surface plasmon resonance of Ag organosols: Experimental and theoretical investigations VL - 66 IS - 6 SP - 805 EP - 812 DO - 10.2298/HEMIND120112028V ER -
@article{ author = "Vukoje, Ivana D. and Božanić, Dušan K. and Džunuzović, Jasna V. and Bogdanović, Una and Vodnik, Vesna", year = "2012", abstract = "The 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-dichlorobenzene) 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.", journal = "Hemijska industrija", title = "Surface plasmon resonance of Ag organosols: Experimental and theoretical investigations", volume = "66", number = "6", pages = "805-812", doi = "10.2298/HEMIND120112028V" }
Vukoje, I. D., Božanić, D. K., Džunuzović, J. V., Bogdanović, U.,& Vodnik, V.. (2012). Surface plasmon resonance of Ag organosols: Experimental and theoretical investigations. in Hemijska industrija, 66(6), 805-812. https://doi.org/10.2298/HEMIND120112028V
Vukoje ID, Božanić DK, Džunuzović JV, Bogdanović U, Vodnik V. Surface plasmon resonance of Ag organosols: Experimental and theoretical investigations. in Hemijska industrija. 2012;66(6):805-812. doi:10.2298/HEMIND120112028V .
Vukoje, Ivana D., Božanić, Dušan K., Džunuzović, Jasna V., Bogdanović, Una, Vodnik, Vesna, "Surface plasmon resonance of Ag organosols: Experimental and theoretical investigations" in Hemijska industrija, 66, no. 6 (2012):805-812, https://doi.org/10.2298/HEMIND120112028V . .