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Outstanding performance of the microwave-made MMO-Ti/RuO2IrO2 anode on the removal of antimicrobial activity of Penicillin G by photoelectrolysis

MetadataDetails
Publication Date2021-04-24
JournalChemical Engineering Journal
AuthorsIsabelle M.D. Gonzaga, Ɓngela Moratalla, Katlin Ivon Barrios Eguiluz, Giancarlo R. Salazar‐Banda, Pablo CaƱizares
InstitutionsUniversidade Tiradentes, Instituto de Tecnologia e Pesquisa
Citations32

This paper studies the applicability of a novel microwave-prepared mixed metal oxide (MMO-Ti/RuO2IrO2) anode in the electrolysis and photo-electrolysis of synthetic urine intensified with Penicillin G. Results are compared with those obtained using boron-doped diamond (BDD) as the anode. In general, electrolysis with both anodes are effective in terms of penicillin removal, and the combination with UV radiation shows a clear synergistic effect on the degradation of Penicillin G: 420% and 355% using MMO and BDD, respectively. The outstanding performance of the MMO-Ti/RuO2IrO2 anode is demonstrated by the decrease in toxicity and the reduction of the antibiotic effect on the urine observed during photo-electrolysis. Notably, photo-electrolysis using the MMO-Ti/RuO2IrO2 anode generates solutions with almost zero residual toxicity and without antibiotic effect, with lower specific energy consumption than using BDD anode. The remarkable performance of the microwaves-prepared MMO-Ti/RuO2IrO2 coatings makes them very promising for being used in the electrochemical treatment of sanitary wastes.

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