Abstract
A nanocomposite with highly dispersed AuNPs coated poly[2-(methacryloyloxy) ethyl] trimethylammonium chloride (PMTC) supported upon jute carbon (AuNPs-PMTC-JC) was prepared in aqueous medium for the selective determination of nitrite (NO2−) ions. Quaternary ammonium groups of PMTC in the nanocomposite results in a positive zeta potential, elevating the electrocatalytic properties of the modified electrode for negatively charged NO2− ions oxidation. The AuNPs-PMTC-JC composite was characterized using UV–vis, FESEM, TEM, SAED, XRD, EDS, CV and EIS. The LOD (S/N = 3) value for NO2− determination is 0.16 µM in the linear range of 0.4–706.5 µM based on the i-t current response, while it is 1.28 µM based on CV responses in the wide range of 10–1000 µM. The modified electrode is highly selective for NO2− ions and shows highly stable, and reproducible results. CV was used to analyze tap water spiked with NO2− and a recovery close to 100 % was observed.
Original language | English |
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Article number | 116572 |
Journal | Materials Science and Engineering B: Solid-State Materials for Advanced Technology |
Volume | 295 |
DOIs | |
State | Published - Sep 2023 |
Bibliographical note
Publisher Copyright:© 2023 Elsevier B.V.
Keywords
- AuNPs
- Ball milled jute carbon
- Electrocatalyst
- Nitrite determination
- Quaternary ammonium group in PMTC
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering