Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrode
This paper presents the fabrication and application of a gold nanoparticle (AuNP)/bismuth nanoparticle (BiNP)/multi-walled carbon nanotubes (MWCNT)/Nafion-modified glassy carbon electrode for the determination of lead (Pb) and cadmium (Cd) via anodic stripping voltammetry (ASV). The ASV parameters a...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023084797 |
| _version_ | 1797429894457589760 |
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| author | Tim Aren O. Salinas Michelle T. Natividad Shirley T. Palisoc |
| author_facet | Tim Aren O. Salinas Michelle T. Natividad Shirley T. Palisoc |
| author_sort | Tim Aren O. Salinas |
| collection | DOAJ |
| description | This paper presents the fabrication and application of a gold nanoparticle (AuNP)/bismuth nanoparticle (BiNP)/multi-walled carbon nanotubes (MWCNT)/Nafion-modified glassy carbon electrode for the determination of lead (Pb) and cadmium (Cd) via anodic stripping voltammetry (ASV). The ASV parameters as well as the AuNP and BiNP contents of the electrode modifier were optimized. The surface morphology, elemental composition, and electrochemical performance of the modified electrode were characterized using scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), and cyclic voltammetry (CV), respectively. The SEM and EDX results showed that the modifiers were present on the electrode surface, while the CV curves show the remarkable stability of the modified electrode. The limit of detection of the fabricated electrode is 2.20 ppb for cadmium and 0.58 ppb for lead. Real sample analysis was performed using rice plant parts: husk, grain, stalk, leaf, root, and soil where the rice plant was planted. The fabricated electrode was able to detect trace concentrations of Pb and Cd in the said samples. |
| first_indexed | 2024-03-09T09:19:30Z |
| format | Article |
| id | doaj.art-2922e92a12b64202a5bdf82122f342e9 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-09T09:19:30Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-2922e92a12b64202a5bdf82122f342e92023-12-02T07:01:41ZengElsevierHeliyon2405-84402023-11-01911e21271Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrodeTim Aren O. Salinas0Michelle T. Natividad1Shirley T. Palisoc2Condensed Matter Physics Laboratory, De La Salle University, Manila, 922, PhilippinesCondensed Matter Physics Laboratory, De La Salle University, Manila, 922, Philippines; Condensed Matter Research Unit, CENSER, De La Salle University, 2401 Taft Avenue, Manila, 922, Philippines; Corresponding authorCondensed Matter Physics Laboratory, De La Salle University, Manila, 922, Philippines.Condensed Matter Physics Laboratory, De La Salle University, Manila, 922, Philippines; Condensed Matter Research Unit, CENSER, De La Salle University, 2401 Taft Avenue, Manila, 922, PhilippinesThis paper presents the fabrication and application of a gold nanoparticle (AuNP)/bismuth nanoparticle (BiNP)/multi-walled carbon nanotubes (MWCNT)/Nafion-modified glassy carbon electrode for the determination of lead (Pb) and cadmium (Cd) via anodic stripping voltammetry (ASV). The ASV parameters as well as the AuNP and BiNP contents of the electrode modifier were optimized. The surface morphology, elemental composition, and electrochemical performance of the modified electrode were characterized using scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), and cyclic voltammetry (CV), respectively. The SEM and EDX results showed that the modifiers were present on the electrode surface, while the CV curves show the remarkable stability of the modified electrode. The limit of detection of the fabricated electrode is 2.20 ppb for cadmium and 0.58 ppb for lead. Real sample analysis was performed using rice plant parts: husk, grain, stalk, leaf, root, and soil where the rice plant was planted. The fabricated electrode was able to detect trace concentrations of Pb and Cd in the said samples.http://www.sciencedirect.com/science/article/pii/S2405844023084797Gold nanoparticlesBismuth nanoparticlesMulti-walled carbon nanotubesAnodic stripping voltammetryHeavy metals |
| spellingShingle | Tim Aren O. Salinas Michelle T. Natividad Shirley T. Palisoc Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrode Heliyon Gold nanoparticles Bismuth nanoparticles Multi-walled carbon nanotubes Anodic stripping voltammetry Heavy metals |
| title | Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrode |
| title_full | Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrode |
| title_fullStr | Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrode |
| title_full_unstemmed | Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrode |
| title_short | Determination of heavy metals in rice (Oryza sativa L.) and soil using AuNP/BiNP/MWCNT/Nafion modified glassy carbon electrode |
| title_sort | determination of heavy metals in rice oryza sativa l and soil using aunp binp mwcnt nafion modified glassy carbon electrode |
| topic | Gold nanoparticles Bismuth nanoparticles Multi-walled carbon nanotubes Anodic stripping voltammetry Heavy metals |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023084797 |
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