Unlocking the effect of Zn2+ on crystal structure, optical properties, and photocatalytic degradation of perfluoroalkyl substances (PFAS) of Bi2WO6

Hojamberdiev, Mirabbos; Larralde, Ana Laura; Vargas, Ronald; Madriz, Lorean; Yubuta, Kunio; Sannegowda, Lokesh Koodlur; Sadok, Ilona; Krzyszczak-Turczyn, Agnieszka; Oleszczuk, Patryk; Czech, Bożena

doi:10.1039/d3ew00430a

Cited by 1 publication

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“…This energy level shift prevents the formation of •OH, allowing holes and /•

\text{O}_{2}^{-}

to initiate both reductive and oxidative degradation reactions. [ 100 ] The alloy also enhances photocatalytic activity due to enlarged specific surface area, improved UV light absorption, and enhanced separation of electron–hole pairs. [ 101 ]…”

Section: Spectral Extension: Toward Exploitation Of Solar Lightmentioning

confidence: 99%

Exploring Solar Energy Solutions for Per‐ and Polyfluoroalkyl Substances Degradation: Advancements and Future Directions in Photocatalytic Processes

Bertucci,

Lova

2024

Solar RRL

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Concerns about per‐ and polyfluoroalkyl substances (PFAS) pollution are escalating globally due to the discovery of their widespread environmental distribution, accompanied by their migration, bioaccumulation, and toxic potential for plants, animals, and humans. Several technologies have been developed for their remediation since standard water treatment methods often fail. However, these approaches require large energy consumption and, at times, exacerbate environmental issues. In this context, photocatalytic degradation holds promise as a reliable technological solution for PFAS mineralization. However, to date, it primarily relies on the degradation of perfluorooctanoic acid using high energy gap semiconductor oxides that necessitate high‐power artificial ultraviolet sources for excitation and, at times, the use of strong chemical oxidants. This review examines chemical‐free catalysts and mechanisms recently documented in the literature to outline a roadmap for the realization of solar‐driven mineralization of all PFAS compounds. To this end, we delve into conventional wide bandgap semiconductor oxide and explore strategies to extend their spectral absorbance while enhancing charge separation with a focus on the proposed degradation pathways, that are fundamental to designing technologically relevant photodegradation systems.This article is protected by copyright. All rights reserved.

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“…This energy level shift prevents the formation of •OH, allowing holes and /•

\text{O}_{2}^{-}

Section: Spectral Extension: Toward Exploitation Of Solar Lightmentioning

confidence: 99%

Exploring Solar Energy Solutions for Per‐ and Polyfluoroalkyl Substances Degradation: Advancements and Future Directions in Photocatalytic Processes

Bertucci,

Lova

2024

Solar RRL

View full text Add to dashboard Cite

show abstract

Unlocking the effect of Zn²⁺ on crystal structure, optical properties, and photocatalytic degradation of perfluoroalkyl substances (PFAS) of Bi₂WO₆

Abstract: Bismuth tungstate (Bi2WO6) with a layered structure and visible light response exhibits excellent photocatalytic activity. To enhance its photocatalytic activity for the degradation of perfluoroalkyl substances (PFAS), Zn2+ is partially...

Cited by 1 publication

References 65 publications

Exploring Solar Energy Solutions for Per‐ and Polyfluoroalkyl Substances Degradation: Advancements and Future Directions in Photocatalytic Processes

Exploring Solar Energy Solutions for Per‐ and Polyfluoroalkyl Substances Degradation: Advancements and Future Directions in Photocatalytic Processes

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