The study of the applicability of ionizing radiation to increase the photocatalytic activity of TiO2 thin films; Journal of Nanostructure in Chemistry; Vol. 10, iss. 4

The study of the applicability of ionizing radiation to increase the photocatalytic activity of TiO2 thin films; Journal of Nanostructure in Chemistry; Vol. 10, iss. 4

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Parent link:Journal of Nanostructure in Chemistry
Vol. 10, iss. 4.— 2020.— [P. 331-346]
Korporativní autor: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Další autoři: Kozlovskiy (Kozlovsky) A. Artem, Zdorovets M., Kenzhina I., Tishkevich D., Zubar T. Tatiana, Trukhanov A. Alex
Shrnutí:Title screen
The paper presents the results of studying the efficiency of using ionizing radiation to modify the surface morphology and structural properties of TiO2 thin films, and the effect of ion modification on the photocatalytic activity of Rhodamine B. decomposition. Structural and morphological changes in thin films were characterized by irradiation with doses of 1014–1016 ion/cm2 using scanning electron microscopy, atomic force microscopy, energy-dispersive analysis and X-ray diffraction. Modification by ion irradiation of thin films leads to a change in grains orientation, a decrease in their size, and an increase in the active surface area. Formation of grains preferred orientation at high radiation doses is caused both by grains rotation as a result of distorting and deformation factors caused by radiation, and by grains partial fragmentation. It was shown that in the case of modified samples of thin films, not only an increase in the rate decomposition reaction constant by 2–4.5 times compared with the initial samples, but also the degree of mineralization is observed. According to the data obtained, the maximum value of mineralization as a result of photocatalytic reactions for initial films was no more than 75–76%. While for irradiated samples, this value varies from 83 to 90% depending on the irradiation dose. For modified films, an increase in crack resistance and resistance to degradation to prolonged tests of photocatalytic activity is observed.
Режим доступа: по договору с организацией-держателем ресурса
Jazyk:angličtina
Vydáno: 2020
Témata:
электронный ресурс
труды учёных ТПУ
TiO2 thin films
photocatalytic activity
low-energy irradiation
ion modification
photodegradation
rhodamine B
On-line přístup:https://doi.org/10.1007/s40097-020-00353-x
Médium: MixedMaterials Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662842

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