Advanced oxidation processes over Fe doped Bi2WO6 photocatalysts toward rhodamine B and cefalexin treatment

Abstract

Industrial wastewater, contaminated by dyes and antibiotics, poses significant environmental challenges. We developed Fe-doped Bi2WO6 (Fe:Bi2WO6) photocatalysts to enhance the photocatalytic activity and stability of Bi2WO6. The advanced oxidation processes (AOPs) of Fe, including the photo-Fenton process for rhodamine B (RhB) degradation and peroxymonosulfate (PMS) activation for Cefalexin (CFX) degradation, were investigated. The Fe doping altered the crystallization of Bi2WO6 and improved its photocatalytic performance, achieving 97.7% RhB degradation and 70.6% CFX degradation within 180 min. These results highlighted the potential of Fe:Bi2WO6 photocatalysts in wastewater treatment, emphasizing their stability and high activity across various conditions.

Keywords

• Fe-doped Bi2WO6
• Photo-Fenton
• PMS activation
• Rhodamine B
• Cefalexin