|
This article is cited in 1 scientific paper (total in 1 paper)
CHEMISTRY AND MATERIAL SCIENCE
Preparation and properties of CeO$_2$ sols stabilized by polyvinyl alcohol
S. A. Kuznetsova, A. A. Gordeev, D. A. Fedorishin, V. V. Kozik Department of Chemistry, Tomsk State University, Tomsk, Siberia, Russia
Abstract:
The CeO$_{2}$ sols stabilized by polyvinyl alcohol (PVA) were obtained from solution of cerium nitrate (III) in the presence of hydrogen peroxide and ammonia. X-ray diffraction, transmission electron microscopy, the pH metric method, ultraviolet spectroscopy and infrared spectroscopy were used to investigate the compositions and properties of the sols. It was observed that the PVA stabilizes the colloidal solution of cerium dioxide. The stability of the solution depends on the mass content of PVA and pH. The surface of various CeO$_{2}$ particles exhibiting the property of an acceptor interacts with OH groups of PVA. CeO$_{2}$ sol with 5 wt.% PVA and pH 8.55 (particle size 67 nm) has sun protection properties (UVA/UVB = 0.64) and is characterized by low photocatalytic activity, cytotoxicity and genotoxicity.
Keywords:
cerium dioxide sol, sun protection properties, methyl orange, propertiesof sol, polyvinyl alcohol.
Received: 18.07.2019
Citation:
S. A. Kuznetsova, A. A. Gordeev, D. A. Fedorishin, V. V. Kozik, “Preparation and properties of CeO$_2$ sols stabilized by polyvinyl alcohol”, Nanosystems: Physics, Chemistry, Mathematics, 10:4 (2019), 456–465
Linking options:
https://www.mathnet.ru/eng/nano459 https://www.mathnet.ru/eng/nano/v10/i4/p456
|
Statistics & downloads: |
Abstract page: | 106 | Full-text PDF : | 97 |
|