Photoelectrocatalytic treatment of levofloxacin using Ti/MMO/ZnO electrode

Here, the antibiotic levofloxacin (LFX) widely used and detected in environment was degraded by photoelectrolysis using a new electrode based on zinc oxide (ZnO) mixture of mixed oxides ruthenium titanium (MMO). The influence potential irradiation UV light investigated photostability Ti/MMO/ZnO degradation antibiotic. experiments were conducted at different pH values (5.0, 7.0 9.0) sodium sulfate solution glass reactor with central lighting. It observed that has good stability under potential, presenting excellent photocurrent high photoactivity LFX photoelectrolysis. removal efficiency compound directly related to formation oxidizing species solution, photo-generated charges electrostatic characteristics molecule. mineralization rate, reaction intermediates short chain carboxylic acids (acetic, maleic, oxalic oxamic acid), addition N-mineral (NO 3 − NH 4 + ) dependent processes: more efficient than photolysis, which, turn, electrolysis. synergistic effect rate after 4.0 h treatment (100%) alkaline pH, associated this photoactivation ions ease generation radicals, such as OH. • polarization. Higher achieved solutions. TOC percentage solution. Applying low sufficient Different variables contributed photodegradation mechanism.