The influence of ILs on TiO2 microspheres activity towards 5-FU removal under artificial sunlight irradiation - Publikacja - MOST Wiedzy

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The influence of ILs on TiO2 microspheres activity towards 5-FU removal under artificial sunlight irradiation

Abstrakt

In this work, the effect of various ionic liquids (ILs), namely, choline chloride [Chol][Cl], hexadecylpyridynium chloride [HDPy][Cl], and tributylmethylammonium chloride [TBMA][Cl], on the morphology, surface compo-sition in relation to photocatalytic oxidation of 5-fluorouracil (5-FU) and phenol in the presence of TiO2 pho-tocatalysts under artificial sunlight conditions was investigated. The highest photoactivity towards cytostatic drug removal was found when [TBMA][Cl] was used for the synthesis, for phenol removal photoactivity was not changed in all cases. Among the selected ionic liquids, only [TMBA][Cl] made it possible to form the Ti3+species, which was equivalent to the occurrence of oxygen vacancies and was beneficial for the photocatalytic activity. Moreover, the increase of ILs-TiO2 photoactivity was assigned to the presence of IL or IL’s organic residues on the photocatalyst surface responsible for better hole and electron separation. The mechanism of 5-FU degradation over the most photoactive photocatalyst was varied under different types of light irradiation, and •OHfree radicals were the major entities in the drug removal under UV light, while holes and •OH free radicals under solar light. These studies represent a promising approach to cytostatic drug removal in the presence of TiO2 microspheres prepared in the presence of others than imidazolium-based ILs.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
APPLIED SURFACE SCIENCE nr 573,
ISSN: 0169-4332
Język:
angielski
Rok wydania:
2022
Opis bibliograficzny:
Wilczewska P., Pancielejko A., Łuczak J., Kroczewska M., Lisowski W., Siedlecka E.: The influence of ILs on TiO2 microspheres activity towards 5-FU removal under artificial sunlight irradiation// APPLIED SURFACE SCIENCE -Vol. 573, (2022), s.151431-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.apsusc.2021.151431
Źródła finansowania:
  • Publikacja bezkosztowa
Weryfikacja:
Politechnika Gdańska

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