Инд. авторы:	Kapsamet M.Z., Tazhibayeva S.M., Urakaev F.K., Uralbekov B.M., Burkitbayev M.M., Bachilova N.V.
Заглавие:	OBTAINING AND STABILIZATION OF NANOSULFUR
Библ. ссылка:	Kapsamet M.Z., Tazhibayeva S.M., Urakaev F.K., Uralbekov B.M., Burkitbayev M.M., Bachilova N.V. OBTAINING AND STABILIZATION OF NANOSULFUR // NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES CHEMISTRY AND TECHNOLOGY. - 2018. - Iss. 5. - P.41-46. - ISSN 2224-5286.
Внешние системы:	DOI: 10.32014/2018.2518-1491.6; WoS: 000450781200006;
Реферат:	eng: On the basis of sodium thiosulfate in the presence of sodium sulfite and solid organic acids - citric and oxalic - sulfur nanoparticles were synthesized. By the method of spectrophotometry, it was shown that efficient for the synthesis of sulfur is the using of the molar ratio of [Na2S2O3]/[Na2SO3] 1:0.5 and of the catalyst is oxalic acid. Nonionic polymer polyethylene glycol (PEG) was used for stabilizing sulfur particles. By methods of light scattering, electron and light microscopy it is shown that the stabilizing effect of the polymer is achieved at a concentration of 10(-3) base-mol/L, and a further increasing of the concentration of PEG leads to aggregation processes. The size of the obtained particles is determined on the Zetasizer Nano device. It was found that in the presence of PEG concentrations of 10(-3) - 10(-2) base-mol/L, the size of sulfur particles decreases from 321.8 nm to 259.1 nm and 270.4 nm, respectively.
Ключевые слова:	NANOPARTICLES; polyethylene glycol; stabilization; nanoparticles; sulfur;
Издано:	2018
Физ. характеристика:	с.41-46