Lan, Shuang ; Zheng, Mupeng ; Zhuo, Fangping ; Zhu, Mankang ; Hou, Yudong (2023)
Enhanced Piezo-Photocatalytic Performance of Na₀.₅Bi₄.₅Ti4O₁₅ by High-Voltage Poling.
In: Materials, 16 (14)
doi: 10.3390/ma16145122
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The internal electric field within a piezoelectric material can effectively inhibit the recombination of photogenerated electron–hole pairs, thus serving as a means to enhance photocatalytic efficiency. Herein, we synthesized a Na0.5Bi4.5Ti4O15 (NBT) catalyst by the hydrothermal method and optimized its catalytic performance by simple high-voltage poling. When applying light and mechanical stirring on a 2 kV mm−1 poled NBT sample, almost 100% of Rhodamine B solution could be degraded in 120 min, and the reaction rate constant reached as high as 28.36 × 10−3 min−1, which was 4.2 times higher than that of the unpoled NBT sample. The enhanced piezo-photocatalytic activity is attributed to the poling-enhanced internal electric field, which facilitates the efficient separation and transfer of photogenerated carriers. Our work provides a new option and idea for the development of piezo-photocatalysts for environmental remediation and pollutant treatment
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Lan, Shuang ; Zheng, Mupeng ; Zhuo, Fangping ; Zhu, Mankang ; Hou, Yudong |
| Art des Eintrags: | Bibliographie |
| Titel: | Enhanced Piezo-Photocatalytic Performance of Na₀.₅Bi₄.₅Ti4O₁₅ by High-Voltage Poling |
| Sprache: | Englisch |
| Publikationsjahr: | 20 Juli 2023 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials |
| Jahrgang/Volume einer Zeitschrift: | 16 |
| (Heft-)Nummer: | 14 |
| Kollation: | 9 Seiten |
| DOI: | 10.3390/ma16145122 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The internal electric field within a piezoelectric material can effectively inhibit the recombination of photogenerated electron–hole pairs, thus serving as a means to enhance photocatalytic efficiency. Herein, we synthesized a Na0.5Bi4.5Ti4O15 (NBT) catalyst by the hydrothermal method and optimized its catalytic performance by simple high-voltage poling. When applying light and mechanical stirring on a 2 kV mm−1 poled NBT sample, almost 100% of Rhodamine B solution could be degraded in 120 min, and the reaction rate constant reached as high as 28.36 × 10−3 min−1, which was 4.2 times higher than that of the unpoled NBT sample. The enhanced piezo-photocatalytic activity is attributed to the poling-enhanced internal electric field, which facilitates the efficient separation and transfer of photogenerated carriers. Our work provides a new option and idea for the development of piezo-photocatalysts for environmental remediation and pollutant treatment |
| Freie Schlagworte: | piezo-photocatalysis, Na0.5Bi4.5Ti4O15, poling process, piezoelectric effect |
| Zusätzliche Informationen: | Artikel-ID: 5122 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 21 Jul 2023 06:46 |
| Letzte Änderung: | 27 Nov 2023 07:25 |
| PPN: | 509852300 |
| Zugehörige Links: | |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Enhanced Piezo-Photocatalytic Performance of Na₀.₅Bi₄.₅Ti₄O₁₅ by High-Voltage Poling. (deposited 24 Nov 2023 13:21)
- Enhanced Piezo-Photocatalytic Performance of Na₀.₅Bi₄.₅Ti4O₁₅ by High-Voltage Poling. (deposited 21 Jul 2023 06:46) [Gegenwärtig angezeigt]
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