Vieira, Karla MoreiraPaschoal, Fabiana Maria MonteiroZanoni, Maria Valnice BoldrinNascentes, Clésia CristinaAugusti, Rodinei2015-01-202015-01-202014VIEIRA, K. M. et al. Photoelectrocatalytic oxidation of ethinylestradiol on a Ti/TiO2 electrode: degradation efficiency and search for by-products. Green and Sustainable Chemistry, v. 4, p. 151-161, 2014. Disponível em: <http://file.scirp.org/pdf/GSC_2014082015345685.pdf>. Acesso em: 08 jan. 2015.2160-6951http://www.repositorio.ufop.br/handle/123456789/4279The degradation of ethinylestradiol (EE, an orally bio-active estrogen) in an aqueous-methanolic solution using a Ti/TiO2 thin-film electrode and UV radiation (a photoelectrocatalytic system) was evaluated. Hence, HPLC/UV analysis shows that EE (at 0.34 mmol) is totally consumed after 30 minutes of exposure to the photoelectrocatalytic system in the presence of Na2SO4 (0.1 mol•L−1) and with an applied bias potential of +1.0 V versus the Ag/AgCl reference electrode. Moreover, monitoring by direct infusion electrospray ionization mass spectrometry (ESI-MS) and SPME-GC/ MS (solid phase microextraction coupled with gas chromatography-mass spectrometry) reveals that apparently no degradation products are formed under these conditions. Hence, this study demonstrates that the photoelectrocatalytic system can be efficiently used to promote the complete degradation (and likely mineralization) of this hormone under these conditions.en-USPhotoelectrocatalytic oxidationEthinylestradiolDegradation efficiencyArtigo publicado em periodicoO periódico Green and Sustainable Chemistry permite o arquivamento do PDF do editor em repositórios de acesso aberto. Fonte: Sherpa/Romeo <http://www.sherpa.ac.uk/romeo/search.php?issn=2160-6951>. Acesso em: 10 nov. 2016.http://dx.doi.org/10.4236/gsc.2014.43020