Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite Sensor
The existence of carcinogenic nitrites in food and the natural environment has attracted much attention. Therefore, it is still urgent and necessary to develop nitrite sensors with higher sensitivity and selectivity and expand their applications in daily life to protect human health and environmenta...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/9/3881 |
| _version_ | 1797602069091188736 |
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| author | Fengyi Wang Ye Li Chenglu Yan Qiuting Ma Xiaofeng Yang Huaqiao Peng Huiyong Wang Juan Du Baozhan Zheng Yong Guo |
| author_facet | Fengyi Wang Ye Li Chenglu Yan Qiuting Ma Xiaofeng Yang Huaqiao Peng Huiyong Wang Juan Du Baozhan Zheng Yong Guo |
| author_sort | Fengyi Wang |
| collection | DOAJ |
| description | The existence of carcinogenic nitrites in food and the natural environment has attracted much attention. Therefore, it is still urgent and necessary to develop nitrite sensors with higher sensitivity and selectivity and expand their applications in daily life to protect human health and environmental safety. Herein, one-dimensional honeycomb-like carbon nanofibers (HCNFs) were synthesized with electrospun technology, and their specific structure enabled controlled growth and highly dispersed bismuth nanoparticles (Bi NPs) on their surface, which endowed the obtained Bi/HCNFs with excellent electrocatalytic activity towards nitrite oxidation. By modifying Bi/HCNFs on the screen-printed electrode, the constructed Bi/HCNFs electrode (Bi/HCNFs-SPE) can be used for nitrite detection in one drop of solution, and exhibits higher sensitivity (1269.9 μA mM<sup>−1</sup> cm<sup>−2</sup>) in a wide range of 0.1~800 μM with a lower detection limit (19 nM). Impressively, the Bi/HCNFs-SPE has been successfully used for nitrite detection in food and environment samples, and the satisfactory properties and recovery indicate its feasibility for further practical applications. |
| first_indexed | 2024-03-11T04:11:45Z |
| format | Article |
| id | doaj.art-03b41fb3e8aa48caa0923741e8b33744 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T04:11:45Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-03b41fb3e8aa48caa0923741e8b337442023-11-17T23:24:48ZengMDPI AGMolecules1420-30492023-05-01289388110.3390/molecules28093881Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite SensorFengyi Wang0Ye Li1Chenglu Yan2Qiuting Ma3Xiaofeng Yang4Huaqiao Peng5Huiyong Wang6Juan Du7Baozhan Zheng8Yong Guo9Institute of Quality Standard and Testing Technology for Agro-Products, Sichuan Academy of Agricultural Sciences, Chengdu 610066, ChinaCollege of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, ChinaKey Laboratory of Aviation Fuel & Chemical Airworthiness and Green Development, The Second Research Institute of Civil Aviation Administration of China, Chengdu 610041, ChinaCollege of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, ChinaInstitute of Quality Standard and Testing Technology for Agro-Products, Sichuan Academy of Agricultural Sciences, Chengdu 610066, ChinaKey Laboratory of Aviation Fuel & Chemical Airworthiness and Green Development, The Second Research Institute of Civil Aviation Administration of China, Chengdu 610041, ChinaCollege of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453002, ChinaCollege of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, ChinaCollege of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, ChinaCollege of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, ChinaThe existence of carcinogenic nitrites in food and the natural environment has attracted much attention. Therefore, it is still urgent and necessary to develop nitrite sensors with higher sensitivity and selectivity and expand their applications in daily life to protect human health and environmental safety. Herein, one-dimensional honeycomb-like carbon nanofibers (HCNFs) were synthesized with electrospun technology, and their specific structure enabled controlled growth and highly dispersed bismuth nanoparticles (Bi NPs) on their surface, which endowed the obtained Bi/HCNFs with excellent electrocatalytic activity towards nitrite oxidation. By modifying Bi/HCNFs on the screen-printed electrode, the constructed Bi/HCNFs electrode (Bi/HCNFs-SPE) can be used for nitrite detection in one drop of solution, and exhibits higher sensitivity (1269.9 μA mM<sup>−1</sup> cm<sup>−2</sup>) in a wide range of 0.1~800 μM with a lower detection limit (19 nM). Impressively, the Bi/HCNFs-SPE has been successfully used for nitrite detection in food and environment samples, and the satisfactory properties and recovery indicate its feasibility for further practical applications.https://www.mdpi.com/1420-3049/28/9/3881nitrite sensorhoneycomb-like carbon nanofibersBi nanoparticlesnitrite detection |
| spellingShingle | Fengyi Wang Ye Li Chenglu Yan Qiuting Ma Xiaofeng Yang Huaqiao Peng Huiyong Wang Juan Du Baozhan Zheng Yong Guo Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite Sensor Molecules nitrite sensor honeycomb-like carbon nanofibers Bi nanoparticles nitrite detection |
| title | Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite Sensor |
| title_full | Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite Sensor |
| title_fullStr | Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite Sensor |
| title_full_unstemmed | Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite Sensor |
| title_short | Bismuth-Decorated Honeycomb-like Carbon Nanofibers: An Active Electrocatalyst for the Construction of a Sensitive Nitrite Sensor |
| title_sort | bismuth decorated honeycomb like carbon nanofibers an active electrocatalyst for the construction of a sensitive nitrite sensor |
| topic | nitrite sensor honeycomb-like carbon nanofibers Bi nanoparticles nitrite detection |
| url | https://www.mdpi.com/1420-3049/28/9/3881 |
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