Influence of synthesis conditions on aggregative stability of Ag alcosols
A.V. Blinov1, A.A. Kravtsov1,2, V.V. Raffa1, V.N. Kramarenko1, S.O. Krandievsky1, D.G. Maglakelidze1, A.A. Blinova1
1North-Caucasian Federal University, Stavropol, Russia
2Federal Research Centre The Southern Scientific Centre of the Russian Academy of Sciences, Rostov-on-Don, Russia
Abstract: For the first time, the paper presents the results of investigation the effect of the type of alcoholic medium on the properties of highly concentrated sols of silver nanoparticles. Spectrophotometry revealed the presence of a selective absorption band corresponding to the surface plasmon resonance of silver nanoparticles. Measurement of the zetta potential showed that, regardless of the type of medium, the surface of silver nanoparticles is negatively charged. It was found that the most aggregatively stable particles that retain stability even in concentrated sodium chloride solutions were obtained in isopropyl alcohol and are characterized by the zetta potential equal to -99.8 mV.
Keywords: silver nanoparticles, optical properties, electroacoustic spectroscopy, zeta potential, nanoparticle stability.
Blinov, A.V. Influence of synthesis conditions on aggregative stability of Ag alcosols / A.V. Blinov, A.A. Kravtsov, V.V. Raffa, V.N. Kramarenko, S.O. Krandievsky, D.G. Maglakelidze, A.A. Blinova // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. – 2020. – I. 12. – P. 25-32. DOI: 10.26456/pcascnn/2020.12.025. (In Russian).
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