Degradation of flumequine by photocatalysis and evaluation of antimicrobial activity

作者: Caio Rodrigues-Silva , Milena Guedes Maniero , Susanne Rath , José Roberto Guimarães

DOI: 10.1016/J.CEJ.2012.11.002

关键词: Veterinary drugMass spectrometryCatalysisFlumequinePhotocatalysisDegradation (geology)PollutantAntimicrobialChromatographyChemistry

摘要: Abstract This study evaluated the efficiencies of advanced oxidation processes (UV/TiO2 and UV/TiO2/H2O2) for flumequine degradation, an antimicrobial emergent pollutant. The photocatalytic process was capable degrading approximately 55% drug after 15 min reaction using 0.31 mmol L−1 TiO2 in suspension; addition H2O2 (0.5 mmol L−1) increased degradation to 81.6%. For UV/TiO2, increasing catalyst concentration (0.08–0.62 mmol L−1) corresponded increase efficiency. Using mass spectrometry, it possible identify five putative byproducts formed during processes. Due risks bacterial resistance, activity treated solutions compared untreated solution. Residual detected all conditions. considerably reduced by throughout reaction.

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