Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energy
Piezoelectric materials have received much attention due to their great potential in environmental remediation by utilizing vibrational energy. In this paper, a novel piezoelectric catalyst, CoOx nanoparticles anchored BiFeO3 nanodisk composite, was intentionally synthesized via a photodeposition me...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417721003552 |
| _version_ | 1818998447734259712 |
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| author | Linkun Wang Junfeng Wang Chenyin Ye Kaiqi Wang Chunran Zhao Ying Wu Yiming He |
| author_facet | Linkun Wang Junfeng Wang Chenyin Ye Kaiqi Wang Chunran Zhao Ying Wu Yiming He |
| author_sort | Linkun Wang |
| collection | DOAJ |
| description | Piezoelectric materials have received much attention due to their great potential in environmental remediation by utilizing vibrational energy. In this paper, a novel piezoelectric catalyst, CoOx nanoparticles anchored BiFeO3 nanodisk composite, was intentionally synthesized via a photodeposition method and applied in piezocatalytic degradation of rhodamine B (RhB) under ultrasonic vibration. The as-synthesized CoOx/BiFeO3 composite presents high piezocatalytic efficiency and stability. The RhB degradation rate is determined to be 1.29 h−1, which is 2.38 folds higher than that of pure BiFeO3. Via optimizing the reaction conditions, the piezocatalytic degradation rate of the CoOx/BiFeO3 can be further increased to 3.20 h−1. A thorough characterization was implemented to investigate the structure, piezoelectric property, and charge separation efficiency of the CoOx/BiFeO3 to reveal the nature behind the high piezocatalytic activity. It is found that the CoOx nanoparticles are tightly adhered and uniformly dispersed on the surface of the BiFeO3 nanodisks. Strong interaction between CoOx and BiFeO3 triggers the formation of a heterojunction structure, which further induces the migration of the piezoinduced holes on the BiFeO3 to CoOx nanoparticles. The recombination of electron-hole pairs is retarded, thereby increasing the piezocatalytic performance greatly. This work may offer a new paradigm for the design of high-efficiency piezoelectric catalysts. |
| first_indexed | 2024-12-20T22:01:41Z |
| format | Article |
| id | doaj.art-9f2c7488f8574b26b0dfcb4c53ba412c |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-12-20T22:01:41Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-9f2c7488f8574b26b0dfcb4c53ba412c2022-12-21T19:25:20ZengElsevierUltrasonics Sonochemistry1350-41772021-12-0180105813Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energyLinkun Wang0Junfeng Wang1Chenyin Ye2Kaiqi Wang3Chunran Zhao4Ying Wu5Yiming He6Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, ChinaDepartment of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, ChinaDepartment of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, ChinaDepartment of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, ChinaDepartment of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, ChinaKey Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China; Corresponding authors at: Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, China (Y. He).Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, China; Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China; Corresponding authors at: Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, China (Y. He).Piezoelectric materials have received much attention due to their great potential in environmental remediation by utilizing vibrational energy. In this paper, a novel piezoelectric catalyst, CoOx nanoparticles anchored BiFeO3 nanodisk composite, was intentionally synthesized via a photodeposition method and applied in piezocatalytic degradation of rhodamine B (RhB) under ultrasonic vibration. The as-synthesized CoOx/BiFeO3 composite presents high piezocatalytic efficiency and stability. The RhB degradation rate is determined to be 1.29 h−1, which is 2.38 folds higher than that of pure BiFeO3. Via optimizing the reaction conditions, the piezocatalytic degradation rate of the CoOx/BiFeO3 can be further increased to 3.20 h−1. A thorough characterization was implemented to investigate the structure, piezoelectric property, and charge separation efficiency of the CoOx/BiFeO3 to reveal the nature behind the high piezocatalytic activity. It is found that the CoOx nanoparticles are tightly adhered and uniformly dispersed on the surface of the BiFeO3 nanodisks. Strong interaction between CoOx and BiFeO3 triggers the formation of a heterojunction structure, which further induces the migration of the piezoinduced holes on the BiFeO3 to CoOx nanoparticles. The recombination of electron-hole pairs is retarded, thereby increasing the piezocatalytic performance greatly. This work may offer a new paradigm for the design of high-efficiency piezoelectric catalysts.http://www.sciencedirect.com/science/article/pii/S1350417721003552BiFeO3CoOxPiezoelectric effectRhBPiezocatalytic |
| spellingShingle | Linkun Wang Junfeng Wang Chenyin Ye Kaiqi Wang Chunran Zhao Ying Wu Yiming He Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energy Ultrasonics Sonochemistry BiFeO3 CoOx Piezoelectric effect RhB Piezocatalytic |
| title | Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energy |
| title_full | Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energy |
| title_fullStr | Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energy |
| title_full_unstemmed | Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energy |
| title_short | Photodeposition of CoOx nanoparticles on BiFeO3 nanodisk for efficiently piezocatalytic degradation of rhodamine B by utilizing ultrasonic vibration energy |
| title_sort | photodeposition of coox nanoparticles on bifeo3 nanodisk for efficiently piezocatalytic degradation of rhodamine b by utilizing ultrasonic vibration energy |
| topic | BiFeO3 CoOx Piezoelectric effect RhB Piezocatalytic |
| url | http://www.sciencedirect.com/science/article/pii/S1350417721003552 |
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