A large size BiVO4 photoanode with high stability for efficient water oxidation and wastewater treatment coupled with H2 evolution

Simultaneously achieving photoelectrochemical (PEC) water oxidation and degradation of organic pollutants coupled with H2 generation for bismuth vanadate (BiVO4) is highly desirable, while it is still hampered by low charge transport ability along with poor chemical durability. Herein, we have devel...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2023-01, Vol.11 (4), p.1756-1765
Main Authors: Yang, Yan, Wan, Shipeng, Li, Si, Wang, Ruonan, Ou, Man, Liu, Biming, Zhong, Qin
Format: Article
Language:English
Subjects:
Antibiotics
Bismuth oxides
Catalysts
Charge efficiency
Charge transport
Degradation
Durability
Hydrogen evolution
Hydrogen production
Oxidation
Photoanodes
Pollutants
Stability
Vanadate
Vanadates
Wastewater oxidation
Wastewater treatment
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Summary:Simultaneously achieving photoelectrochemical (PEC) water oxidation and degradation of organic pollutants coupled with H2 generation for bismuth vanadate (BiVO4) is highly desirable, while it is still hampered by low charge transport ability along with poor chemical durability. Herein, we have developed a NiFeOx co-catalyst decorated N-incorporated BiVO4 photoanode (N-BiVO4/NiFeOx), which not only can facilitate the charge transport efficiency but also efficiently suppresses the photo-corrosion. More specifically, the Fe sites trap photo-generated holes for promoting PEC processes and the Ni sites provide electrons to V sites for inhibiting V5+ dissolution of BiVO4. As a result, the large size N-BiVO4/NiFeOx photoanode with outstanding chemical stability exhibits efficient water oxidation and tetracycline hydrochloride (TCH) degradation coupled with H2 production performance. This work offers a promising avenue to design a high-performance photoanode and a new insight into antibiotic wastewater treatment.
ISSN:2050-7488
2050-7496
DOI:10.1039/d2ta08347g