Synthesis of gold nanopartucles in presence of polarizing film components
Abstract
Gold nanoparticles (GNPs) are formed under sonication (Elmasonic S 30 H, Germany) and temperature change from 18 to 66оС in water solutions containing Congo red (CR), polyvinyl alcohol (PVA), ethanol, glycerol and their mixtures. CRefficiently reduces AuCl4- to Au0 producing GNPs, which size depends on the dye concentration. The yield of the monodisperse GNPs is increased directly proportionally to amount of PVA in medium. The addition of CR in the PVA solution decreaseformation rate and size of GNPs. CR forms associates with GNPs, which aggregate, if they include particles of ~15 nm. Polarizing PVA film prepared from the water-ethanol solution, containing CR and GNPs of ~38 nm in the concentration of 0,15 nM do not differ by absorption spectra, optical transmission and polarization effect from films without nanoparticles.
About the Authors
A. V. Abakhshonok
Институт химии новых материалов НАН Беларуси
Belarus
Belarus
H. A. Almodarresuyeh
Институт физико-органической химии НАН Беларуси
Belarus
Belarus
S. N. Shahab
Институт физико-органической химии НАН Беларуси
Belarus
Belarus
A. N. Eryomin
Институт химии новых материалов НАН Беларуси
Belarus
Belarus
V. E. Agabekov
Институт химии новых материалов НАН Беларуси
Belarus
Belarus
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