A procedure for the preparation of ZnO nanocubes in an alginate biopolymer was introduced. The obtained nanocubes were used for the preparation of ZnO/Ag heterostructures. High resolution scanning electron microscopy showed that reduction of silver salts in the presence of nanocubes results in the formation of spherical silver nanoparticles at their edges and vertices. UV-vis and photoluminescence spectroscopy revealed that alginate-ZnO/Ag nanostructures exhibit different optical properties compared to the starting alginate-ZnO system. The surface plasmon resonance peak of the silver nanoparticles dominates the absorption spectra of the ZnO/Ag hybrid particles, while at the same time the Ag nanoparticles quench the ZnO emission. The photocatalytic activity of the ZnO/Ag heterostructure was faster than that of the pure ZnO and further improved with increasing the concentration of silver. Both the alginate-ZnO and alginate-ZnO/Ag nanocomposites showed strong antimicrobial activities agai...nst gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria.
TY - JOUR
AU - Trandafilović, Lidija V.
AU - Krsmanović, Radenka
AU - Dimitrijević-Branković, Suzana
AU - Stoiljković, Milovan
AU - Luyt, Adriaan S.
AU - Đoković, Vladimir
PY - 2014
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2663
AB - A procedure for the preparation of ZnO nanocubes in an alginate biopolymer was introduced. The obtained nanocubes were used for the preparation of ZnO/Ag heterostructures. High resolution scanning electron microscopy showed that reduction of silver salts in the presence of nanocubes results in the formation of spherical silver nanoparticles at their edges and vertices. UV-vis and photoluminescence spectroscopy revealed that alginate-ZnO/Ag nanostructures exhibit different optical properties compared to the starting alginate-ZnO system. The surface plasmon resonance peak of the silver nanoparticles dominates the absorption spectra of the ZnO/Ag hybrid particles, while at the same time the Ag nanoparticles quench the ZnO emission. The photocatalytic activity of the ZnO/Ag heterostructure was faster than that of the pure ZnO and further improved with increasing the concentration of silver. Both the alginate-ZnO and alginate-ZnO/Ag nanocomposites showed strong antimicrobial activities against gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria.
PB - Elsevier Science Sa, Lausanne
T2 - Chemical Engineering Journal
T1 - ZnO/Ag hybrid nanocubes in alginate biopolymer: Synthesis and properties
EP - 349
SP - 341
VL - 253
DO - 10.1016/j.cej.2014.05.056
ER -
@article{
author = "Trandafilović, Lidija V. and Krsmanović, Radenka and Dimitrijević-Branković, Suzana and Stoiljković, Milovan and Luyt, Adriaan S. and Đoković, Vladimir",
year = "2014",
abstract = "A procedure for the preparation of ZnO nanocubes in an alginate biopolymer was introduced. The obtained nanocubes were used for the preparation of ZnO/Ag heterostructures. High resolution scanning electron microscopy showed that reduction of silver salts in the presence of nanocubes results in the formation of spherical silver nanoparticles at their edges and vertices. UV-vis and photoluminescence spectroscopy revealed that alginate-ZnO/Ag nanostructures exhibit different optical properties compared to the starting alginate-ZnO system. The surface plasmon resonance peak of the silver nanoparticles dominates the absorption spectra of the ZnO/Ag hybrid particles, while at the same time the Ag nanoparticles quench the ZnO emission. The photocatalytic activity of the ZnO/Ag heterostructure was faster than that of the pure ZnO and further improved with increasing the concentration of silver. Both the alginate-ZnO and alginate-ZnO/Ag nanocomposites showed strong antimicrobial activities against gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "ZnO/Ag hybrid nanocubes in alginate biopolymer: Synthesis and properties",
pages = "349-341",
volume = "253",
doi = "10.1016/j.cej.2014.05.056"
}
Trandafilović, L. V., Krsmanović, R., Dimitrijević-Branković, S., Stoiljković, M., Luyt, A. S.,& Đoković, V.. (2014). ZnO/Ag hybrid nanocubes in alginate biopolymer: Synthesis and properties. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 253, 341-349.
https://doi.org/10.1016/j.cej.2014.05.056
Trandafilović LV, Krsmanović R, Dimitrijević-Branković S, Stoiljković M, Luyt AS, Đoković V. ZnO/Ag hybrid nanocubes in alginate biopolymer: Synthesis and properties. in Chemical Engineering Journal. 2014;253:341-349.
doi:10.1016/j.cej.2014.05.056 .
Trandafilović, Lidija V., Krsmanović, Radenka, Dimitrijević-Branković, Suzana, Stoiljković, Milovan, Luyt, Adriaan S., Đoković, Vladimir, "ZnO/Ag hybrid nanocubes in alginate biopolymer: Synthesis and properties" in Chemical Engineering Journal, 253 (2014):341-349,
https://doi.org/10.1016/j.cej.2014.05.056 . .
