Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detection
Environmental contamination by heavy metal ions poses significant health risks, emphasizing the urgent need for effective detection methods. In the work, it develops a bimetallic FeCo MOFs electrochemical sensor for trace copper ions detection in water, using a NaOH-mediated synthesis to modify MOF...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715625002498 |
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| author | Ruiying Zhu Lifeng Ding Qiang Li Hongmei Dong Mengjie Shi Zhengwei Song Shengling Li Hao Chen Jiahang Zhang |
| author_facet | Ruiying Zhu Lifeng Ding Qiang Li Hongmei Dong Mengjie Shi Zhengwei Song Shengling Li Hao Chen Jiahang Zhang |
| author_sort | Ruiying Zhu |
| collection | DOAJ |
| description | Environmental contamination by heavy metal ions poses significant health risks, emphasizing the urgent need for effective detection methods. In the work, it develops a bimetallic FeCo MOFs electrochemical sensor for trace copper ions detection in water, using a NaOH-mediated synthesis to modify MOFs materials. Iron ion doping introduces a bimetallic site, significantly enhancing the conductivity of the original ZIF-67. The addition of reduced graphene oxide (RGO) further improves conductivity due to its folded structure, which facilitates greater MOF deposition on the electrode surface. Additionally, the incorporation of Nafion enhances the stability of the MOF in aqueous environments. Sensitivity tests show effective detection of Cu2+ in the concentration range of 0.01–1 μM, with a LOD of 6.54 nM. And the sensor has exceptional stability, reproducibility, and interference resistance. The sensor demonstrated successful application in detecting Cu2+ in water samples, showing potential for broader applications in monitoring other heavy metal ions in environmental water samples. |
| format | Article |
| id | doaj-art-6376b2373781473abfe455c3ade2980e |
| institution | OA Journals |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-6376b2373781473abfe455c3ade2980e2025-08-20T02:33:12ZengElsevierResults in Chemistry2211-71562025-05-011510226610.1016/j.rechem.2025.102266Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detectionRuiying Zhu0Lifeng Ding1Qiang Li2Hongmei Dong3Mengjie Shi4Zhengwei Song5Shengling Li6Hao Chen7Jiahang Zhang8Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR China; Corresponding author at: Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR China.Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Electronic Information and Optical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan; Corresponding author at: Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Electronic Information and Optical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China.Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaEnvironmental contamination by heavy metal ions poses significant health risks, emphasizing the urgent need for effective detection methods. In the work, it develops a bimetallic FeCo MOFs electrochemical sensor for trace copper ions detection in water, using a NaOH-mediated synthesis to modify MOFs materials. Iron ion doping introduces a bimetallic site, significantly enhancing the conductivity of the original ZIF-67. The addition of reduced graphene oxide (RGO) further improves conductivity due to its folded structure, which facilitates greater MOF deposition on the electrode surface. Additionally, the incorporation of Nafion enhances the stability of the MOF in aqueous environments. Sensitivity tests show effective detection of Cu2+ in the concentration range of 0.01–1 μM, with a LOD of 6.54 nM. And the sensor has exceptional stability, reproducibility, and interference resistance. The sensor demonstrated successful application in detecting Cu2+ in water samples, showing potential for broader applications in monitoring other heavy metal ions in environmental water samples.http://www.sciencedirect.com/science/article/pii/S2211715625002498Electrochemical sensorTrace copper ionsMetal–organic frameworks (MOFs) materialsThe bimetallic siteElectrochemical analysis |
| spellingShingle | Ruiying Zhu Lifeng Ding Qiang Li Hongmei Dong Mengjie Shi Zhengwei Song Shengling Li Hao Chen Jiahang Zhang Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detection Results in Chemistry Electrochemical sensor Trace copper ions Metal–organic frameworks (MOFs) materials The bimetallic site Electrochemical analysis |
| title | Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detection |
| title_full | Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detection |
| title_fullStr | Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detection |
| title_full_unstemmed | Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detection |
| title_short | Based on bimetallic FeCo MOFs electrochemical sensor with a low detection limit for trace copper ions detection |
| title_sort | based on bimetallic feco mofs electrochemical sensor with a low detection limit for trace copper ions detection |
| topic | Electrochemical sensor Trace copper ions Metal–organic frameworks (MOFs) materials The bimetallic site Electrochemical analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2211715625002498 |
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