najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-523Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХPreparation and properties of CeO2 sols stabilized by polyvinyl alcoholKuznetsovaS. A.

Tomsk, Siberia

onm@chem.tsu.ruGordeevA. A.

Tomsk, Siberia

gaa1998sukh-mo@mail.ruFedorishinD. A.

Tomsk, Siberia

strix187@yandex.ruKozikV. V.

Tomsk, Siberia

vkozik@mail.ruDepartment of Chemistry, Tomsk State UniversityRussian Federation201905082025104456–465Copyright © Kuznetsova S.A., Gordeev A.A., Fedorishin D.A., Kozik V.V., 20252025Kuznetsova S.A., Gordeev A.A., Fedorishin D.A., Kozik V.V.Kuznetsova S.A., Gordeev A.A., Fedorishin D.A., Kozik V.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/523

The CeO2 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 CeO2 particles exhibiting the property of an acceptor interacts with OH groups of PVA. CeO2 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.

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The authors declare that there are no conflicts of interest present.