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- Title
Effects of Plasma Treatment on the Surface and Photocatalytic Properties of Nanostructured SnO 2 –SiO 2 Films.
- Authors
Pronin, Igor A.; Sigaev, Alexander P.; Komolov, Alexei S.; Zhizhin, Evgeny V.; Karmanov, Andrey A.; Yakushova, Nadezhda D.; Kyashkin, Vladimir M.; Nishchev, Konstantin N.; Sysoev, Victor V.; Goel, Sanket; Amreen, Khairunnisa; K, Ramya; Korotcenkov, Ghenadii
- Abstract
In this work, we study the effects of treating nanostructured SnO2–SiO2 films derived by a sol-gel method with nitrogen and oxygen plasma. The structural and chemical properties of the films are closely investigated. To quantify surface site activity in the films following treatment, we employed a photocatalytic UV degradation test with brilliant green. Using X-ray photoelectron spectroscopy, it was found that treatment with oxygen plasma led to a high deviation in the stoichiometry of the SnO2 surface and even the appearance of a tin monoxide phase. These samples also exhibited a maximum photocatalytic activity. In contrast, treatment with nitrogen plasma did not lead to any noticeable changes in the material. However, increasing the power of the plasma source from 250 W to 500 W led to the appearance of an SnO fraction on the surface and a reduction in the photocatalytic activity. In general, all the types of plasma treatment tested led to amorphization in the SnO2–SiO2 samples.
- Subjects
STANNIC oxide; NITROGEN plasmas; IRRADIATION; SURFACE properties; OXYGEN plasmas; PHOTOCATALYSTS; PHOTOREDUCTION
- Publication
Materials (1996-1944), 2023, Vol 16, Issue 14, p5030
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma16145030