Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubes
Abstract Photocatalytic degradation of organic pollutants is of great significance for wastewater remediation but is still hindered by the poor catalytic efficiency of the catalysts. Herein, we report a strategy to simultaneously introduce piezocatalysis and to enhance the intrinsic photocatalysis i...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2022-07-01
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| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40145-022-0590-6 |
| _version_ | 1827832649042886656 |
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| author | Angom Devadatta Mani Jie Li Ziquan Wang Jiale Zhou Huaicheng Xiang Jinlai Zhao Libo Deng Haitao Yang Lei Yao |
| author_facet | Angom Devadatta Mani Jie Li Ziquan Wang Jiale Zhou Huaicheng Xiang Jinlai Zhao Libo Deng Haitao Yang Lei Yao |
| author_sort | Angom Devadatta Mani |
| collection | DOAJ |
| description | Abstract Photocatalytic degradation of organic pollutants is of great significance for wastewater remediation but is still hindered by the poor catalytic efficiency of the catalysts. Herein, we report a strategy to simultaneously introduce piezocatalysis and to enhance the intrinsic photocatalysis in a single catalyst, which improved the performance for catalytic degradation of methylene blue (MB) significantly. Specifically, piezoelectric BiFeO3 (BFO) nanotube doped with different contents of Gd and La (Bi0.9(Gd x La1−x )0.1FeO3) were produced by electrospinning. The doping led to a higher concentration of surface oxygen vacancy (OV) in Bi0.9Gd0.07La0.03FeO3, which effectively increased the piezoelectric field due to the deformation of BFO, and suppressed the recombination of photon-generated electron-hole pairs. The Bi0.9Gd0.07La0.03FeO3 nanotube showed excellent catalytic performance under simultaneous light irradiation and ultrasonic excitation, giving an extraordinary 95% degradation of MB within 90 min. These findings suggest that the piezoelectric effect combined with defect engineering can enhance the catalytic performance of Bi0.9Gd0.07La0.03FeO3 nanotube. This could potentially be extended to other catalytic systems for high-performance pollutant treatment. |
| first_indexed | 2024-03-12T05:16:31Z |
| format | Article |
| id | doaj.art-45a98b761a274b699f82279e3232fca9 |
| institution | Directory Open Access Journal |
| issn | 2226-4108 2227-8508 |
| language | English |
| last_indexed | 2024-03-12T05:16:31Z |
| publishDate | 2022-07-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj.art-45a98b761a274b699f82279e3232fca92023-09-03T08:06:07ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082022-07-011171069108110.1007/s40145-022-0590-6Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubesAngom Devadatta Mani0Jie Li1Ziquan Wang2Jiale Zhou3Huaicheng Xiang4Jinlai Zhao5Libo Deng6Haitao Yang7Lei Yao8Shenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen UniversityShenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen UniversityCollege of Chemistry and Environmental Engineering, Shenzhen UniversityShenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen UniversityShenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen UniversityShenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen UniversityCollege of Chemistry and Environmental Engineering, Shenzhen UniversityShenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen UniversityShenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen UniversityAbstract Photocatalytic degradation of organic pollutants is of great significance for wastewater remediation but is still hindered by the poor catalytic efficiency of the catalysts. Herein, we report a strategy to simultaneously introduce piezocatalysis and to enhance the intrinsic photocatalysis in a single catalyst, which improved the performance for catalytic degradation of methylene blue (MB) significantly. Specifically, piezoelectric BiFeO3 (BFO) nanotube doped with different contents of Gd and La (Bi0.9(Gd x La1−x )0.1FeO3) were produced by electrospinning. The doping led to a higher concentration of surface oxygen vacancy (OV) in Bi0.9Gd0.07La0.03FeO3, which effectively increased the piezoelectric field due to the deformation of BFO, and suppressed the recombination of photon-generated electron-hole pairs. The Bi0.9Gd0.07La0.03FeO3 nanotube showed excellent catalytic performance under simultaneous light irradiation and ultrasonic excitation, giving an extraordinary 95% degradation of MB within 90 min. These findings suggest that the piezoelectric effect combined with defect engineering can enhance the catalytic performance of Bi0.9Gd0.07La0.03FeO3 nanotube. This could potentially be extended to other catalytic systems for high-performance pollutant treatment.https://doi.org/10.1007/s40145-022-0590-6photocatalysispiezocatalysissonophotocatalysisoxygen vacancy (OV) |
| spellingShingle | Angom Devadatta Mani Jie Li Ziquan Wang Jiale Zhou Huaicheng Xiang Jinlai Zhao Libo Deng Haitao Yang Lei Yao Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubes Journal of Advanced Ceramics photocatalysis piezocatalysis sonophotocatalysis oxygen vacancy (OV) |
| title | Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubes |
| title_full | Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubes |
| title_fullStr | Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubes |
| title_full_unstemmed | Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubes |
| title_short | Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi0.9Gd0.07La0.03FeO3 nanotubes |
| title_sort | coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by bi0 9gd0 07la0 03feo3 nanotubes |
| topic | photocatalysis piezocatalysis sonophotocatalysis oxygen vacancy (OV) |
| url | https://doi.org/10.1007/s40145-022-0590-6 |
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