Promoting the role of Fe doping in WO3 toward enhancing H2O2 oxidation ability for contaminant degradation
Year: 2025
Type: article
Abstract: The WO 3 semiconductor emerges as a photocatalytic material of remarkable potential in harnessing solar radiation absorption capabilities, with promising applications in the photocatalytic treatment of organic compounds. Nonetheless, a primary limitation in the fast recombination of photogenerated electrons and holes is caused by an ill-suited E CBM energy level, resulting in electrons not reacting with dissolved oxygen. In this study, Fe-doped WO 3 is used to improve the energy band structure and enhance H 2 O 2 oxidative activation. Results demonstrated strong photocatalytic activity in degrading ciprofloxacin antibiotic (CIP 40 ppm) and rhodamine B dye (RhB 40 ppm) with 74.1 % of CIP and a staggering 92.8 % of RhB being decomposed after 180 min of visible light irradiation. By some empirical investigations, we also demonstrated the role of Fe doping into WO 3 has significantly enhanced the oxidative properties of holes, effectively trapping photogenerated electrons and activating crucial reactions such as Fenton, like Fenton, and Haber-Weiss. This pioneering research not only presents a compelling solution for the treatment of stubborn organic compounds but also unveils a groundbreaking strategy to enhance the photocatalytic activity of semiconductors plagued by the weak reducing power of photogenerated electrons.
Authors: Luan The Nguyen, Anh Tuan Pham, Tinh Thanh Vo, Khoa Tien Le, Nam Hoang Vu, Viet Van Pham
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,350
OpenAlex ID: W4413290640