Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection
Different nanomaterials in single (CeO2), binary (CdS/CeO2 and Ag3PO4/CeO2), ternary CdS/CeO2/Ag3PO4 (4:1 molar ratio) and conductive polymer supported (PANI-CdS/CeO2/Ag3PO4) were synthesized by co-precipitation method. Elemental analysis, crystal structure, surface area, morphology and optical prop...
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KeAi Communications Co., Ltd.
2024-01-01
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| Series: | Sensors International |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666351123000256 |
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| author | Tigabu Bekele Mekonnen |
| author_facet | Tigabu Bekele Mekonnen |
| author_sort | Tigabu Bekele Mekonnen |
| collection | DOAJ |
| description | Different nanomaterials in single (CeO2), binary (CdS/CeO2 and Ag3PO4/CeO2), ternary CdS/CeO2/Ag3PO4 (4:1 molar ratio) and conductive polymer supported (PANI-CdS/CeO2/Ag3PO4) were synthesized by co-precipitation method. Elemental analysis, crystal structure, surface area, morphology and optical properties of the as-synthesized nanoparticles were characterized. Electrochemical behavior of glassy carbon electrode modified by polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite were also characterized by electrochemical impedance spectroscopy and cyclic voltammetry in 0.1 M of K3[Fe(CN)6] containing 0.1 M KCl at pH 7 with a frequency range of 0.1 to 1000 Hz, with an amplitude of 50 mV. The voltammogramm shows that the process of all as synthesized nanocomposites modified glassy carbon electrode is diffusion controlled. Under optimum conditions, the electrochemical sensor showed Malathion concentrations in linear range of 1-13 × 10−7 M, good reproducibility, and no interference by other pesticides and high recovery values around 98.90%. As-synthesized nanocomposite modified glassy carbon electrode exhibits the lowest detection limit of 3.0 × 10−9 M for Malathion detection. The simplicity of preparation, high sensitivity, good stability and reproducibility of this nanostructured polyaniline supported CdS/CeO2/Ag3PO4 electrode can be a potential candidate for application in the detection of Malathion. |
| format | Article |
| id | doaj-art-e7bbd417e7084b288741ad198b611ce9 |
| institution | Kabale University |
| issn | 2666-3511 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Sensors International |
| spelling | doaj-art-e7bbd417e7084b288741ad198b611ce92025-01-04T04:57:05ZengKeAi Communications Co., Ltd.Sensors International2666-35112024-01-015100251Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detectionTigabu Bekele Mekonnen0Department of Chemistry, College of Natural and Computational Sciences, Mekdela Amba University, P.O. Box 32, Tulu Awulia, EthiopiaDifferent nanomaterials in single (CeO2), binary (CdS/CeO2 and Ag3PO4/CeO2), ternary CdS/CeO2/Ag3PO4 (4:1 molar ratio) and conductive polymer supported (PANI-CdS/CeO2/Ag3PO4) were synthesized by co-precipitation method. Elemental analysis, crystal structure, surface area, morphology and optical properties of the as-synthesized nanoparticles were characterized. Electrochemical behavior of glassy carbon electrode modified by polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite were also characterized by electrochemical impedance spectroscopy and cyclic voltammetry in 0.1 M of K3[Fe(CN)6] containing 0.1 M KCl at pH 7 with a frequency range of 0.1 to 1000 Hz, with an amplitude of 50 mV. The voltammogramm shows that the process of all as synthesized nanocomposites modified glassy carbon electrode is diffusion controlled. Under optimum conditions, the electrochemical sensor showed Malathion concentrations in linear range of 1-13 × 10−7 M, good reproducibility, and no interference by other pesticides and high recovery values around 98.90%. As-synthesized nanocomposite modified glassy carbon electrode exhibits the lowest detection limit of 3.0 × 10−9 M for Malathion detection. The simplicity of preparation, high sensitivity, good stability and reproducibility of this nanostructured polyaniline supported CdS/CeO2/Ag3PO4 electrode can be a potential candidate for application in the detection of Malathion.http://www.sciencedirect.com/science/article/pii/S2666351123000256Cyclic voltammetryElectrochemical sensorsGCEMalathionNanotechnology |
| spellingShingle | Tigabu Bekele Mekonnen Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection Sensors International Cyclic voltammetry Electrochemical sensors GCE Malathion Nanotechnology |
| title | Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection |
| title_full | Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection |
| title_fullStr | Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection |
| title_full_unstemmed | Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection |
| title_short | Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection |
| title_sort | electrochemical sensor based on polyaniline supported cds ceo2 ag3po4 nanocomposite for malathion detection |
| topic | Cyclic voltammetry Electrochemical sensors GCE Malathion Nanotechnology |
| url | http://www.sciencedirect.com/science/article/pii/S2666351123000256 |
| work_keys_str_mv | AT tigabubekelemekonnen electrochemicalsensorbasedonpolyanilinesupportedcdsceo2ag3po4nanocompositeformalathiondetection |