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Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling
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 Na(0.5)Bi(4.5)Ti(4)O(15) (NBT) catalyst by the hydrothermal method and o...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384474/ https://www.ncbi.nlm.nih.gov/pubmed/37512397 http://dx.doi.org/10.3390/ma16145122 |
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author | Lan, Shuang Zheng, Mupeng Zhuo, Fangping Zhu, Mankang Hou, Yudong |
author_facet | Lan, Shuang Zheng, Mupeng Zhuo, Fangping Zhu, Mankang Hou, Yudong |
author_sort | Lan, Shuang |
collection | PubMed |
description | 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 Na(0.5)Bi(4.5)Ti(4)O(15) (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. |
format | Online Article Text |
id | pubmed-10384474 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-103844742023-07-30 Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling Lan, Shuang Zheng, Mupeng Zhuo, Fangping Zhu, Mankang Hou, Yudong Materials (Basel) Article 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 Na(0.5)Bi(4.5)Ti(4)O(15) (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. MDPI 2023-07-20 /pmc/articles/PMC10384474/ /pubmed/37512397 http://dx.doi.org/10.3390/ma16145122 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lan, Shuang Zheng, Mupeng Zhuo, Fangping Zhu, Mankang Hou, Yudong Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling |
title | Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling |
title_full | Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling |
title_fullStr | Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling |
title_full_unstemmed | Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling |
title_short | Enhanced Piezo-Photocatalytic Performance of Na(0.5)Bi(4.5)Ti(4)O(15) by High-Voltage Poling |
title_sort | enhanced piezo-photocatalytic performance of na(0.5)bi(4.5)ti(4)o(15) by high-voltage poling |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384474/ https://www.ncbi.nlm.nih.gov/pubmed/37512397 http://dx.doi.org/10.3390/ma16145122 |
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