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J Hazard Mater ; 416: 125762, 2021 08 15.
Artículo en Inglés | MEDLINE | ID: mdl-33819643

RESUMEN

The degradation of Pentoxifylline (PXF) was achieved successfully by green energy in a built-in solar photocatalytic system using hybrid LiCs ferrites (Li0.5Cs0.5FeO2) as magnetically recoverable photocatalysts. Kinetics showed a first-order reaction rate with maximum PXF removal of 94.91% at mildly acidic pH; additionally, the ferromagnetic properties of catalyst allowed recovery and reuse multiple times, reducing costs and time in degradation processes. The degradation products were identified by HPLC-MS and allowed us to propose a thermodynamically feasible mechanism that was validated through DFT calculations. Additionally, toxicity studies have been performed in bacteria and yeast where high loadings of Cs showed to be harmful to Staphylococcus aureus (MIC≥ 4.0 mg/mL); Salmonella typhi (MIC≥ 8.0 mg/mL) and Candida albicans (MIC≥ 10.0 mg/mL). The presented setup shows effectiveness and robustness in a degradation process using alternative energy sources for the elimination of non-biodegradable pollutants.


Asunto(s)
Pentoxifilina , Contaminantes Químicos del Agua , Catálisis , Cinética , Fotólisis , Luz Solar , Titanio , Contaminantes Químicos del Agua/análisis , Contaminantes Químicos del Agua/toxicidad
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