| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-전기화학 |
| 제목 |
Highly sensitive electrochemical sensing oftoxic pesticide in polluted water based on the petal-like VS2anchored onto graphene nanosheets |
| 초록 |
Fenitrothion (FT) is a toxic phosphorothioate insecticide that can harm theaquatic species and human health. Therefore, it is vital to develop theaccurate and precise real-time sensing of carcinogenic FT in water. We aim tofabricate the low-cost VS2-attached reduced graphene oxide (RGO) sheets via asimple hydrothermal approach. The VS2/RGO-composite delivers rapidelectrocatalytic sensing performance towards toxic FT reduction than the VS2and RGO modified electrodes. The electron transfer rate constant (ks) and thesaturating absorption capacity (Γ) value of FT was evaluated to be 1.52 s−1 and2.18 × 10−10 mol cm−2, respectively. The constructed sensor exhibits a widelinear relationship after amperometry between the cathodic current densitiesand the concentrations of FT in the range of 5–90 nM and high sensitivity(5.569 μA nM−1 cm−2); moreover, the detection limit was 0.07 nM (S/N = 3). |
| 저자 |
김은수, Ezhil Vilian, 허윤석
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| 소속 |
인하대 |
| 키워드 |
electrochemical sensor; reduced graphene oxide; amperometry; composite; fenitrothion
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| E-Mail |
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