The optical properties of nanodisperse silica in hydrothermal solutions

Autor:	A. A. Revina, V. V. Potapov, E. K. Baranova
Rok vydání:	2008
Předmět:	medicine.diagnostic_test Chemistry Diffusion Colloidal silica Analytical chemistry Physics::Optics Nanoparticle Laser Electromagnetic radiation law.invention Condensed Matter::Soft Condensed Matter Wavelength Dynamic light scattering law Spectrophotometry medicine Physical and Theoretical Chemistry
Zdroj:	Russian Journal of Physical Chemistry A. 82:1002-1009
ISSN:	1531-863X 0036-0244
DOI:	10.1134/s0036024408060253
Popis:	The optical properties of aqueous solutions of colloidal silica were studied by photon correlation spectroscopy and spectrophotometry. Photon correlation spectroscopy measurements were taken at a 633 nm wavelength of monochromatic laser radiation. Autocorrelation function and scattered light amplitude plots were constructed, and the mean radii and diffusion coefficients of particles were determined. Spectrophotometric measurements were taken over the electromagnetic radiation wavelength range 200–1000 nm. The positions of optical density maxima were determined. The influence of various factors, including concentration, the size of nanoparticles, temperature, and pH, on the optical properties of aqueous solutions of silica was estimated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b3e75ccab42eb453cc4bc169edae107c https://doi.org/10.1134/s0036024408060253 Zobrazit plný text záznamu Full text from SpringerLink