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
Article, Bibliographie
This is the latest version of this item.
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
| Item Type: | Article |
|---|---|
| Erschienen: | 2023 |
| Creators: | Lan, Shuang ; Zheng, Mupeng ; Zhuo, Fangping ; Zhu, Mankang ; Hou, Yudong |
| Type of entry: | Bibliographie |
| Title: | Enhanced Piezo-Photocatalytic Performance of Na₀.₅Bi₄.₅Ti4O₁₅ by High-Voltage Poling |
| Language: | English |
| Date: | 20 July 2023 |
| Publisher: | MDPI |
| Journal or Publication Title: | Materials |
| Volume of the journal: | 16 |
| Issue Number: | 14 |
| Collation: | 9 Seiten |
| DOI: | 10.3390/ma16145122 |
| Corresponding Links: | |
| 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 |
| Uncontrolled Keywords: | piezo-photocatalysis, Na0.5Bi4.5Ti4O15, poling process, piezoelectric effect |
| Additional Information: | Artikel-ID: 5122 |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials |
| Date Deposited: | 21 Jul 2023 06:46 |
| Last Modified: | 27 Nov 2023 07:25 |
| PPN: | 509852300 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Available Versions of this Item
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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) [Currently Displayed]
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