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The beauty of being complex: Prussian blue analogues as selective catalysts and photocatalysts in the degradation of ciprofloxacin
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-4628-3857
Department of Chemistry – Ångström Laboratory, Uppsala University, Box 538, SE-751 21, Uppsala, Sweden.
Dipartimento di Scienze Chimiche, Università degli Studi di Padova, 35131 Padova, Italy; Istituto di Chimica della Materia Condensata e di Tecnologie per l’Energia, ICMATE-CNR, 35127 Padova, Italy.
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2022 (English)In: Journal of Catalysis, ISSN 0021-9517, E-ISSN 1090-2694, Vol. 410, p. 307-319Article in journal (Refereed) Published
Abstract [en]

We investigate the performance of four Prussian blue analogues (PBAs) as catalysts for the selective degradation of ciprofloxacin in water, under both dark and illumination conditions. We show that no light is actually needed to induce a selective degradation of the molecular target, while light irradiation spurs the process, without, however, resulting in the commonly reported photolysis-supported breaking down. We present a systematic characterization of the PBAs aiming at interpreting the catalytic outcomes in the light of a classic coordination chemistry analysis, empowered by the most recent findings in literature. We show that varying the transition metal binding the N atom of the cyanide bridge is key to promote photoinduced charge generation and transfer, which effectively disrupts the molecular target. The analysis of the materials before and after the irradiation with solar simulated light results in a change of the lattice parameters, indicating the possibility of a light-induced spin cross-over.

Place, publisher, year, edition, pages
Elsevier, 2022. Vol. 410, p. 307-319
Keywords [en]
Prussian blue analogues, Ciprofloxacin degradation, Photocatalysis, Auto-catalytic reactions, Mössbauer spectroscopy
National Category
Materials Chemistry Physical Chemistry
Research subject
Engineering Materials; Experimental Physics
Identifiers
URN: urn:nbn:se:ltu:diva-90488DOI: 10.1016/j.jcat.2022.04.029ISI: 000799277700002Scopus ID: 2-s2.0-85129740965OAI: oai:DiVA.org:ltu-90488DiVA, id: diva2:1655255
Funder
The Kempe Foundations, (SMK-1947)ÅForsk (Ångpanneföreningen's Foundation for Research and Development), (18-459)Swedish Energy Agency, (45517-1)
Note

Validerad;2022;Nivå 2;2022-05-11 (sofila)

Available from: 2022-05-02 Created: 2022-05-02 Last updated: 2022-06-20Bibliographically approved

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Khasevani, Sepideh G.Nikjoo, DariushConcina, Isabella

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