Construction of a Zero-gap Flow-Through Microfluidic Reactor with Porous RuO2-IrO2Pt Anode for Electrocatalytic Oxidation of Antibiotics in Water

© 2024 Wiley‐VCH GmbH..

In this study, a zero-gap flow-through microfluidic reactor was constructed for the degradation of tetracycline and norfloxacin in water using a porous Ti/RuO2-IrO2Pt electrode as the anode and porous titanium plate as the cathode. The operation parameters included electrolyte type, electrolyte concentration, current density, initial concentration of pollutants and pH, were investigated. The degradation efficiency and energy consumption were calculated and compared with traditional electrolyzer. In the zero-gap flow-through microfluidic reactor, 100 % of both tetracycline and norfloxacin can be decomposed in 15 min, and high mineralization rate were achieved under the optimized reaction condition. And the reaction was consistent with pseudo-first-order kinetics with k value of 0.492 cm-1 and 1.010 cm-1, for tetracycline and norfloxacin, respectively. In addition, the energy consumption was 28.33 kWh ⋅ kg-1 TC and 8.36 kWh ⋅ kg-1 NOR, for tetracycline and norfloxacin, respectively, which was much lower than that of traditional electrolyzer. The LC-MS results showed that tetracycline underwent a series of demethylation, dehydration and deamination reactions, and the norfloxacin went through ring opening reaction, decarboxylation and hydroxylation reaction, and finally both produced CO2 and H2O.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:19

Enthalten in:

Chemistry, an Asian journal - 19(2024), 6 vom: 15. März, Seite e202301128

Sprache:

Englisch

Beteiligte Personen:

Zhu, Yunqing [VerfasserIn]
Wang, Huan [VerfasserIn]
Li, Bingqing [VerfasserIn]
Wang, Tian [VerfasserIn]
Zhu, Yunfu [VerfasserIn]
Hou, Jianing [VerfasserIn]

Links:

Volltext

Themen:

Electro-catalysis
Journal Article
Norfloxacin
Product analysis
Tetracycline
Zero-gap flow-through microfluidic reactor

Anmerkungen:

Date Revised 28.03.2024

published: Print-Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.1002/asia.202301128

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368129020