Determination of optimal modes for measuring the size of colloidal particles by photon-correlation spectroscopy and acoustic spectroscopy

M.A. Yasnaya, A.V. Blinov, A.A. Blinova, I.M. Shevchenko, D.G. Maglakelidze, A.O. Senkova

North Caucasus Federal University

DOI: 10.26456/pcascnn/2020.12.232

Original article

Abstract: This paper presents the results of measuring the size of colloidal SiO₂ particles by two methods – photon-correlation spectroscopy of dynamic light scattering and acoustic spectroscopy. Mathematical processing of experimental data using the software of the Photocor-Complex and DT-1202 spectrometers made it possible to obtain of the size distribution histograms for silicon dioxide colloidal particles in a standard sample. For the first time it has been established that the optimal parameters for measuring the size of colloidal SiO₂ particles by the photon-correlation spectroscopy are the substance concentration less than 1 %, the photodetector position angle of 90 degrees and the number of measurements in a cycle of 100 – 150, and for the acoustic spectroscopy – 1 % substance concentration.

Keywords: photon correlation spectroscopy of dynamic light scattering, acoustic spectroscopy, colloidal particles

• Mariya A. Yasnaya – Ph. D., Assistant professor of the Department of Electronics and Nanotechnology of the Engineering Institute, North Caucasus Federal University
• Andrey V. Blinov – Senior Lecturer of the Department of Electronics and Nanotechnology of the Engineering Institute, North Caucasus Federal University
• Anastasiya A. Blinova – Ph. D., Assistant professor of the Department of Electronics and Nanotechnology of the Engineering Institute, North Caucasus Federal University
• Irina M. Shevchenko – Ph. D., Assistant professor of the Department of Electronics and Nanotechnology of the Engineering Institute, North Caucasus Federal University
• David G. Maglakelidze – student of the Department of Electronics and Nanotechnology of the Engineering Institute, North Caucasus Federal University
• Anna O. Senkova – student of the Department of Electronics and Nanotechnology of the Engineering Institute, North Caucasus Federal University

Reference:

Yasnaya, M.A. Determination of optimal modes for measuring the size of colloidal particles by photon-correlation spectroscopy and acoustic spectroscopy / M.A. Yasnaya, A.V. Blinov, A.A. Blinova, I.M. Shevchenko, D.G. Maglakelidze, A.O. Senkova // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2020. — I. 12. — P. 232-242. DOI: 10.26456/pcascnn/2020.12.232. (In Russian).

Full article (in Russian): download PDF file

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