Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System
Bismuth (Bi) is a highly reactive catalyst for the generation of hydroxyl (∙OH) radicals. Cathodes constructed from composites of Bi and carbon nanotube (CNT) exhibit high stability and low resistance, which enhance their electron transfer capability. In this work, a titanium substrate was coated wi...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Nanomaterials and Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2023/9753824 |
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| author | Yi-Ta Wang Yi-Chi Hsieh Yue-Sheng Lin |
| author_facet | Yi-Ta Wang Yi-Chi Hsieh Yue-Sheng Lin |
| author_sort | Yi-Ta Wang |
| collection | DOAJ |
| description | Bismuth (Bi) is a highly reactive catalyst for the generation of hydroxyl (∙OH) radicals. Cathodes constructed from composites of Bi and carbon nanotube (CNT) exhibit high stability and low resistance, which enhance their electron transfer capability. In this work, a titanium substrate was coated with multi-walled carbon nanotube (MWCNT/Ti) using electrophoretic deposition process, followed by electrodeposition of Bi onto the MWCNT-coated Ti (Bi/MWCNT/Ti). The effects of Bi electrodeposition time on the surface morphology of Bi/MWCNT/Ti cathodes were investigated by scanning electron microscopy and energy-dispersive X-ray spectroscopy, and the electrochemical characteristics of each cathode were identified via a series of electrochemical analyses further. The results demonstrated that electrodeposition at −0.85 V vs. Ag/AgCl for 5 min revealed uniform distribution of dense Bi across the surface of cathode, which provides better hydrophilicity for cathode and promotes highest electron transfer rates, respectively; when the Bi/MWCNT/Ti cathode was used as an electro-Fenton (EF) cathode, the EF system achieved a rhodamine B degradation rate of 80.8% after 30 min, which is a significant increase (83.63%) than the unmodified Ti cathode. The use of Bi in EF cathodes improves the efficiency of the EF process. |
| format | Article |
| id | doaj-art-7391950fd3934b17bafb467d0ee51ffc |
| institution | Kabale University |
| issn | 1847-9804 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Nanomaterials and Nanotechnology |
| spelling | doaj-art-7391950fd3934b17bafb467d0ee51ffc2025-02-03T06:45:11ZengWileyNanomaterials and Nanotechnology1847-98042023-01-01202310.1155/2023/9753824Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton SystemYi-Ta Wang0Yi-Chi Hsieh1Yue-Sheng Lin2Department of Mechanical and Electromechanical EngineeringDepartment of Mechanical and Electromechanical EngineeringDepartment of Mechanical EngineeringBismuth (Bi) is a highly reactive catalyst for the generation of hydroxyl (∙OH) radicals. Cathodes constructed from composites of Bi and carbon nanotube (CNT) exhibit high stability and low resistance, which enhance their electron transfer capability. In this work, a titanium substrate was coated with multi-walled carbon nanotube (MWCNT/Ti) using electrophoretic deposition process, followed by electrodeposition of Bi onto the MWCNT-coated Ti (Bi/MWCNT/Ti). The effects of Bi electrodeposition time on the surface morphology of Bi/MWCNT/Ti cathodes were investigated by scanning electron microscopy and energy-dispersive X-ray spectroscopy, and the electrochemical characteristics of each cathode were identified via a series of electrochemical analyses further. The results demonstrated that electrodeposition at −0.85 V vs. Ag/AgCl for 5 min revealed uniform distribution of dense Bi across the surface of cathode, which provides better hydrophilicity for cathode and promotes highest electron transfer rates, respectively; when the Bi/MWCNT/Ti cathode was used as an electro-Fenton (EF) cathode, the EF system achieved a rhodamine B degradation rate of 80.8% after 30 min, which is a significant increase (83.63%) than the unmodified Ti cathode. The use of Bi in EF cathodes improves the efficiency of the EF process.http://dx.doi.org/10.1155/2023/9753824 |
| spellingShingle | Yi-Ta Wang Yi-Chi Hsieh Yue-Sheng Lin Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System Nanomaterials and Nanotechnology |
| title | Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System |
| title_full | Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System |
| title_fullStr | Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System |
| title_full_unstemmed | Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System |
| title_short | Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System |
| title_sort | characterization of bismuth composited to carbon nanotube coated titanium cathode in electro fenton system |
| url | http://dx.doi.org/10.1155/2023/9753824 |
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