纳米复合材料
循环伏安法
材料科学
分子印迹聚合物
纳米技术
傅里叶变换红外光谱
微分脉冲伏安法
碳纳米管
量子点
介电谱
动态光散射
电化学
电化学气体传感器
分析化学(期刊)
化学工程
纳米颗粒
化学
有机化学
电极
催化作用
选择性
工程类
物理化学
作者
Hossein Khosropour,Marziyeh Saboohi,Mansoureh Keramat,Behzad Rezaei,Ali A. Ensafi
标识
DOI:10.1016/j.snb.2023.133652
摘要
Unsuitable use of agricultural pesticides has caused excessive pollution of the environment. Therefore, it is very important to identify the remaining contamination in environmental samples. Indoxacarb (IDC) as an oxadiazine fungicide use on large part of corps. In this work, we reported voltammetric sensor-based molecularly imprinted polymers (MIP) film on a tin disulfide quantum dots-carbon nitride-multiwalled carbon nanotubes (MIP@SnS2 QDs/pg-C3N4/MWCNTs) nanocomposite for ultrasensitive detection of IDC. Cyclic and differential pulse voltammetry (CV and DPV), electrochemical impedance spectroscopy (EIS), UV-Vis absorption spectroscopy, photoluminescence spectroscopy, Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS), X-ray diffraction (XRD), energy dispersive X-ray (EDX), elemental mapping used for characterization of the proposed electrode. Under optimum conditions, the current response for IDC was obtained in the linear range of 20.0 nmol L−1 to 10.0 µmol L−1 and a detection limit of 7.1 nmol L−1. Using this MIP sensor, IDC has been determined in samples of Zayandeh Rood river water and apple. Several advantages of the proposed sensor were demonstrated, including its sensitivity, selectivity, and simplicity.
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