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Voltammetric nano-molar range quantification of agrochemical pesticide using needle-like strontium pyrophosphate embedded on sulfur doped graphitic carbon nitride electrocatalyst
| Citace: |
BHUVANESWARI, CH.; SHANMUGAM, R.; ELANGOVAN, A.; SATHISH KUMAR, P.; SHARMILA, CH.; SUDHA, K.; ARIVAZHAGAN, G.; SUBRAMANIAN, P. Voltammetric nano-molar range quantification of agrochemical pesticide using needle-like strontium pyrophosphate embedded on sulfur doped graphitic carbon nitride electrocatalyst. Food Chemistry, 2024, roč. 437, č. MAR 30 2024, s. nestránkováno. ISSN 0308-8146.
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| Druh: | ČLÁNEK |
| Jazyk publikace: | eng |
| Anglický název: | Voltammetric nano-molar range quantification of agrochemical pesticide using needle-like strontium pyrophosphate embedded on sulfur doped graphitic carbon nitride electrocatalyst |
| Rok vydání: | 2024 |
| Autoři: | Chandran Bhuvaneswari , Ramasamy Shanmugam , Arumugam Elangovan , Ponnaiah Sathish Kumar , Chandrasekaran Sharmila , Karuppaiah Sudha , Ganesan Arivazhagan , Master of Science Palaniappan Subramanian Doctor of Philosophy in Chemistry |
| Abstrakt EN: | The development of a viable sensor for agrochemical pesticides requires the assessment of trace levels. To achieve this, we developed a diphenylamine (DPA) sensor using needle-like strontium pyrophosphate embedded in sulfur-doped graphitic carbon nitride (SrPO/SCN). We obtained needle-like SrPO/SCN nanocomposite through co-precipitation followed by ultrasonication. The formation of the SrPO/SCN nanocomposite was verified through FT-IR, XRD, XPS, SEM-EDX, and HR-TEM analyses. Additionally, we explored their electrochemical behavior towards DPA using differential pulse voltammetry (DPV) and cyclic voltammetry (CV). The SrPO/SCN nanocomposite-modified electrode exhibited a higher anodic peak current (15.47 ?A) than those of the other modified and unmodified electrodes. Under optimal experimental conditions, SrPO/SCN/GCE demonstrated a good limit of detection (0.009 ?mol/L), dynamic linear range (0.05?98 ?mol/L), and sensitivity (0.36 ?A?M-1cm?2). Furthermore, the developed sensor exhibited excellent reproducibility, selectivity, and stability, and successfully detected DPA in real samples, including pear and apple samples, with good recoveries. |
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