Synthesis, characterization, and application of 2D/2D TiO2-GO-ZnFe2O4 obtained by the fluorine-free lyophilization method for solar light-driven photocatalytic degradation of ibuprofen - Publication - Bridge of Knowledge

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Synthesis, characterization, and application of 2D/2D TiO2-GO-ZnFe2O4 obtained by the fluorine-free lyophilization method for solar light-driven photocatalytic degradation of ibuprofen

Abstract

In this study, we report the potential of 2D/2D TiO2- GO-ZnFe2O4 photocatalyst obtained using the fluorine-free lyophilization technique for the degradation of ibuprofen belonging to the group of active pharmaceutical ingredients (API). The improved ibuprofen degradation under simulated solar light was achieved in the presence of a composite of 2D TiO2 combined with GO and embedded ZnFe2O4, which additionally provides superparamagnetic properties and enables photocatalyst separation after the photodegradation process. After only 20 min of the photodegradation process in the presence of 2D/2D TiO2- GO-ZnFe2O4 composite, more than 90% of ibuprofen was degraded under simulated solar light, leading to non-toxic and more susceptible to biodegradation intermediates. At the same time, photolysis of ibuprofen led to the formation of more toxic intermediates. Furthermore, based on the photocatalytic degradation analysis, the degradation by-products and possible photodegradation pathways of ibuprofen were investigated. The photodegradation tests and electronic spin resonance analyses indicated the significant involvement of superoxide radicals and singlet oxygen in the ibuprofen photodegradation process.

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Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH no. 30, pages 35929 - 35944,
ISSN: 0944-1344
Language:
English
Publication year:
2023
Bibliographic description:
Malinowska I., Madajski P., Ostrowski A., Gómez-Polo C., Carvera L., Bednarski W., Kubica P., Zielińska-Jurek A.: Synthesis, characterization, and application of 2D/2D TiO2-GO-ZnFe2O4 obtained by the fluorine-free lyophilization method for solar light-driven photocatalytic degradation of ibuprofen// ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH -Vol. 30, (2023), s.35929-35944
DOI:
Digital Object Identifier (open in new tab) 10.1007/s11356-022-24587-0
Sources of funding:
Verified by:
Gdańsk University of Technology

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