Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> Nanomaterials
In this study, square–star-shaped leaf-like BiVO<sub>4</sub> nanomaterials were successfully synthesized using a conventional hydrothermal method. The microstructure, elemental composition, and gas-sensing performance of the materials were thoroughly investigated. Morphological analysis...
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MDPI AG
2025-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/2/127 |
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| author | Jin Liu Mengdi Yang Yuanyuan Lv Yixin Gao Danyang Bai Neng Li Haoru Guo Anyi Wang |
| author_facet | Jin Liu Mengdi Yang Yuanyuan Lv Yixin Gao Danyang Bai Neng Li Haoru Guo Anyi Wang |
| author_sort | Jin Liu |
| collection | DOAJ |
| description | In this study, square–star-shaped leaf-like BiVO<sub>4</sub> nanomaterials were successfully synthesized using a conventional hydrothermal method. The microstructure, elemental composition, and gas-sensing performance of the materials were thoroughly investigated. Morphological analysis revealed that BiVO<sub>4</sub> prepared at different reaction temperatures exhibited square–star-shaped leaf-like structures, with the most regular and dense structures formed at 150 °C, exhibiting a large specific surface area of 2.84 m<sup>2</sup>/g. The response performance of the BiVO<sub>4</sub> gas sensors to different target gases was evaluated, and the results showed that the prepared BiVO<sub>4</sub> gas sensor exhibited a strong response to NH<sub>3</sub>. At the optimal operating temperature of 300 °C, its sensitivity to 5 ppm NH<sub>3</sub> reached 13.3, with a response time of 28 s and a recovery time of 16 s. Moreover, the gas sensor exhibited excellent repeatability and anti-interference performance. These findings indicate that square–star-shaped leaf-like BiVO<sub>4</sub> holds great potential in environmental monitoring and industrial safety detection, offering new insights for the development of high-performance gas sensors. |
| format | Article |
| id | doaj-art-7b56cc30004a4f4da4420aced4d849d2 |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj-art-7b56cc30004a4f4da4420aced4d849d22025-01-24T13:44:14ZengMDPI AGNanomaterials2079-49912025-01-0115212710.3390/nano15020127Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> NanomaterialsJin Liu0Mengdi Yang1Yuanyuan Lv2Yixin Gao3Danyang Bai4Neng Li5Haoru Guo6Anyi Wang7School of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaIn this study, square–star-shaped leaf-like BiVO<sub>4</sub> nanomaterials were successfully synthesized using a conventional hydrothermal method. The microstructure, elemental composition, and gas-sensing performance of the materials were thoroughly investigated. Morphological analysis revealed that BiVO<sub>4</sub> prepared at different reaction temperatures exhibited square–star-shaped leaf-like structures, with the most regular and dense structures formed at 150 °C, exhibiting a large specific surface area of 2.84 m<sup>2</sup>/g. The response performance of the BiVO<sub>4</sub> gas sensors to different target gases was evaluated, and the results showed that the prepared BiVO<sub>4</sub> gas sensor exhibited a strong response to NH<sub>3</sub>. At the optimal operating temperature of 300 °C, its sensitivity to 5 ppm NH<sub>3</sub> reached 13.3, with a response time of 28 s and a recovery time of 16 s. Moreover, the gas sensor exhibited excellent repeatability and anti-interference performance. These findings indicate that square–star-shaped leaf-like BiVO<sub>4</sub> holds great potential in environmental monitoring and industrial safety detection, offering new insights for the development of high-performance gas sensors.https://www.mdpi.com/2079-4991/15/2/127BiVO<sub>4</sub> nanomaterialshydrothermal methodgas-sensing performancegas sensorammonia |
| spellingShingle | Jin Liu Mengdi Yang Yuanyuan Lv Yixin Gao Danyang Bai Neng Li Haoru Guo Anyi Wang Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> Nanomaterials Nanomaterials BiVO<sub>4</sub> nanomaterials hydrothermal method gas-sensing performance gas sensor ammonia |
| title | Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> Nanomaterials |
| title_full | Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> Nanomaterials |
| title_fullStr | Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> Nanomaterials |
| title_full_unstemmed | Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> Nanomaterials |
| title_short | Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO<sub>4</sub> Nanomaterials |
| title_sort | preparation and gas sensitive properties of square star shaped leaf like bivo sub 4 sub nanomaterials |
| topic | BiVO<sub>4</sub> nanomaterials hydrothermal method gas-sensing performance gas sensor ammonia |
| url | https://www.mdpi.com/2079-4991/15/2/127 |
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