The photodegradation of model quinolone carboxylates in aqueous media
Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
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Abstract: This work was focused on the study of photoinduced processes of quinolone carboxylates in the presence of titanium dioxide in an alkaline media. UVA irradiation without/with titanium dioxide caused the decomposition of molecules, with higher efficiency of degradation in the presence of titanium dioxide. EPR spin trapping experiments proved that investigated quinolone carboxylates behave as the efficient scavengers of hydroxyl radicals produced upon irradiation of aerated alkaline titanium dioxide systems.
Keywords: Quinolone carboxylate, Titanium dioxide, EPR spectroscopy; UV/vis spectroscopy; EPR spin trapping technique
Full paper in Portable Document Format: acs_0177.pdf
Acta Chimica Slovaca, Vol. 7, No. 1, 2014, pp. 1—8, DOI: 10.2478/acs-2014-0001