Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode
A sensitive acetylene black modified carbon paste electrode was fabricated for the determination of trace mercury ions in water samples. Nitric acid treatment of acetylene black (TAB) produced a porous structure with large surface area and defects, improving its performance as an electrode modifier....
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016823010992 |
| _version_ | 1797341475011297280 |
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| author | Zichun Yang |
| author_facet | Zichun Yang |
| author_sort | Zichun Yang |
| collection | DOAJ |
| description | A sensitive acetylene black modified carbon paste electrode was fabricated for the determination of trace mercury ions in water samples. Nitric acid treatment of acetylene black (TAB) produced a porous structure with large surface area and defects, improving its performance as an electrode modifier. Under optimized conditions, the TAB/CPE showed good selectivity and sensitivity towards mercury ions. The peak current exhibited a linear relationship with mercury ion concentration from 10 nM to 0.1 mM, with a detection limit of 8.8 nM. The enhanced sensitivity results from a synergistic effect between the properties of TAB and carbon paste. The porous structure, large surface area and defects in TAB improve mercury ion adsorption and electron transfer kinetics. Meanwhile, the carbon paste provides a stable and conductive electrode base. The developed sensor showed good stability, repeatability and reproducibility, as well as acceptable recovery results when applied to detect mercury ions in simulated water samples. This simple and rapid electrochemical method holds potential for the determination of trace mercury ions in environmental water samples. |
| first_indexed | 2024-03-08T10:19:49Z |
| format | Article |
| id | doaj.art-7db902dcd6c24f528bc96c43ed5a48e9 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-03-08T10:19:49Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-7db902dcd6c24f528bc96c43ed5a48e92024-01-28T04:19:27ZengElsevierAlexandria Engineering Journal1110-01682024-01-0187107113Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrodeZichun Yang0Career Technical College Guiyang, Guiyang 550081, ChinaA sensitive acetylene black modified carbon paste electrode was fabricated for the determination of trace mercury ions in water samples. Nitric acid treatment of acetylene black (TAB) produced a porous structure with large surface area and defects, improving its performance as an electrode modifier. Under optimized conditions, the TAB/CPE showed good selectivity and sensitivity towards mercury ions. The peak current exhibited a linear relationship with mercury ion concentration from 10 nM to 0.1 mM, with a detection limit of 8.8 nM. The enhanced sensitivity results from a synergistic effect between the properties of TAB and carbon paste. The porous structure, large surface area and defects in TAB improve mercury ion adsorption and electron transfer kinetics. Meanwhile, the carbon paste provides a stable and conductive electrode base. The developed sensor showed good stability, repeatability and reproducibility, as well as acceptable recovery results when applied to detect mercury ions in simulated water samples. This simple and rapid electrochemical method holds potential for the determination of trace mercury ions in environmental water samples.http://www.sciencedirect.com/science/article/pii/S1110016823010992Electrochemical detectionAcetylene blackCarbon paste electrodeMercury ionCyclic voltammetry |
| spellingShingle | Zichun Yang Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode Alexandria Engineering Journal Electrochemical detection Acetylene black Carbon paste electrode Mercury ion Cyclic voltammetry |
| title | Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode |
| title_full | Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode |
| title_fullStr | Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode |
| title_full_unstemmed | Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode |
| title_short | Voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode |
| title_sort | voltammetry for quantitative determination of trace mercury ions in water via acetylene black modified carbon paste electrode |
| topic | Electrochemical detection Acetylene black Carbon paste electrode Mercury ion Cyclic voltammetry |
| url | http://www.sciencedirect.com/science/article/pii/S1110016823010992 |
| work_keys_str_mv | AT zichunyang voltammetryforquantitativedeterminationoftracemercuryionsinwaterviaacetyleneblackmodifiedcarbonpasteelectrode |