BiFeO3 Nanoparticles: The “Holy‐Grail” of Piezo‐Photocatalysts? [* Cross-Reference *]

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Wafa Amdouni; Matthieu Fricaudet; Mojca Otoničar; Vincent Garcia; S. Fusil; J. Kreisel; H. Maghraoui-Meherzi; Brahim Dkhil, 2026, "BiFeO3 Nanoparticles: The “Holy‐Grail” of Piezo‐Photocatalysts? [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.A7JDSX, LIST Open Repository, V1
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Description
Recently, piezoelectric-based catalysis has been demonstrated to be an efficient means and promising alternative to sunlight-driven photocatalysis, where mechanical vibrations trigger redox reactions. Here, 60 nm-size BiFeO3 nanoparticles are shown to be very effective for piezo-degrading Rhodamine B (RhB) model dye with record degradation rate reaching 13 810 L mol−1 min−1, and even 41 750 L mol−1 min−1 (i.e., 100% RhB degradation within 5 min) when piezocatalysis is synergistically combined with sunlight photocatalysis. These BiFeO3 piezocatalytic nanoparticles are also demonstrated to be versatile toward several dyes and pharmaceutical pollutants, with over 80% piezo-decomposition within 120 min. The maintained high piezoelectric coefficient combined with low dielectric constant, high-elastic modulus, and the nanosized shape make these BiFeO3 nanoparticles extremely efficient piezocatalysts. To avoid subsequent secondary pollution and enable their reusability, the BiFeO3 nanoparticles are further embedded in a polymer P(VDF-TrFE) matrix. The as-designed flexible, chemically stable, and recyclable nanocomposites still keep remarkable piezocatalytic and piezo-photocatalytic performances (i.e., 92% and 100% RhB degradation, respectively, within 20 min). This work opens a new research avenue for BiFeO3 that is the model multiferroic and offers a new platform for water cleaning, as well as other applications such as water splitting, CO2 reduction, or surface purification. (2023-05-02)
***This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.1002/adma.202301841 for the original and latest version of the publication*** (2026-07-01)
Subject Engineering; Physics
Keyword Materials science, Photocatalysis, Rhodamine B, Nanoparticle, Nanocomposite, Degradation (telecommunications), Piezoelectricity, Nanotechnology, Chemical engineering, Catalysis, Decomposition, Reusability, Composite material, Organic chemistry
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