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Ciprofloxacin wastewater treated by UVA photocatalysis: contribution of irradiated TiO2 and ZnO nanoparticles on the final toxicity as assessed by Vibrio fischeri
- Silva, Ana R.; Martins, Pedro M.; Teixeira, Sara; Carabineiro, Sónia A.C.; Kuehn, Klaus; Cuniberti, G.; Alves, M. Madalena; Lanceros-Mendez, Senentxu; Pereira, Luciana
- RSC Advances, 6(98), 95494-95503, 2016
Publisher: The Royal Society of Chemistry
Abstract
Photocatalysis has become an attractive process to treat wastewater since it allows a rapid and efficient degradation of micropollutants in water. A solution of ciprofloxacin (CIP) was photocatalytically treated by ultraviolet A light (UVA) and titanium dioxide (TiO2) or zinc oxide (ZnO) nanoparticles. Toxicity of CIP and of the treated CIP solutions, as well as the toxicity of TiO2 and ZnO irradiated nanoparticles, was evaluated towards Vibrio fischeri. The lowest concentration of CIP tested, 10 μg L−1, leads to 50% of luminescence inhibition. Regarding irradiated nanoparticles, ZnO presented ...
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