Electrochemical oxidation of losartan on a BDD electrode - Influence of cathodes and electrolytes on the degradation kinetics and pathways
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2024-01-05 |
| Journal | Water Resources and Industry |
| Authors | Rebecca Dhawle, Ardiana Kajtazi, ÎαÏία ΣαÎșΔλλαÏÎŻÎżÏ , Zacharias Frontistis, FrĂ©dĂ©ric Lynen |
| Institutions | University of Patras, University of Western Macedonia |
| Citations | 20 |
Abstract
Section titled âAbstractâIn this work, the influence of supporting electrolytes (sodium sulfate and sodium chloride) on the electrochemical oxidation of the antihypertensive drug losartan (LOS) was studied under different operating conditions such as current density (4.1-12.5 mA cmâ2), electrolyte concentration (0.05-0.5 M), initial pollutant concentration (250-1000 ÎŒg Lâ1) and solution pH. The role of cathodes on the removal of LOS has been investigated using five different cathodes with carbonaceous cathodes showing better LOS removal. The effect of matrix composition has been studied using simulated water spiked with various constituents and real water matrices such as bottled water (BW) and wastewater (WW). The removal of LOS was pronounced while using a chloride electrolyte as compared to the sulfate electrolyte. The apparent rate constant increased on adding persulfate (PS) up to concentrations of 150 mg Lâ1 and decreased in the presence of bicarbonates and organic matter. The transformation products (TPs) formed during the electrochemical oxidation depended on the supporting electrolyte and two common TPs were identified in both electrolytes with a total of 4 TPs identified in the chloride medium and 7 TPs in the sulfate medium. Degradation pathways for LOS in both electrolytes have also been proposed.
Tech Support
Section titled âTech SupportâOriginal Source
Section titled âOriginal SourceâReferences
Section titled âReferencesâ- 2018 - Occurrence and ecotoxicological assessment of pharmaceuticals: is there a risk for the mediterranean aquatic environment? [Crossref]
- 2022 - Fate and transport of pharmaceuticals in water systems: a processes review [Crossref]
- 2021 - Effects of emerging pollutants on the occurrence and transfer of antibiotic resistance genes: a review [Crossref]
- 2022 - Pharmaceuticals in water as emerging pollutants for river health: a critical review under Indian conditions [Crossref]
- 2022 - Occurrence, detection and ecotoxicity studies of selected pharmaceuticals in aqueous ecosystems- a systematic appraisal [Crossref]
- 2021 - Interactive effects of microplastics and selected pharmaceuticals on red tilapia: role of microplastic aging [Crossref]
- 2021 - Sartans: what they are for, how they degrade, where they are found and how they transform [Crossref]
- 2022 - Occurrence, ecological risk assessment and prioritization of pharmaceuticals and abuse drugs in estuarine waters along the SĂŁo Paulo coast, Brazil [Crossref]