Highly sensitive non-enzymatic MP sensor based on electrospun copper oxide-doped zirconium oxide composite microfibers

被引：14

作者：

Li, Ling ^{[1
]}

Wang, Zhihui ^{[1
]}

Wang, Tingting ^{[1
]}

Gong, Jian ^{[1
]}

Qi, Bin ^{[1
]}

机构：

[1] Northeast Normal Univ, Key Lab Polyoxometalate Sci, Minist Educ, Dept Chem, Changchun 130024, Jilin, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2019年 / 846卷

关键词：

Zirconium oxide; Copper oxide; Methyl parathion; Modified electrode; Electrospinning microfibers; METHYL PARATHION; ELECTROCHEMICAL SENSOR; ORGANOPHOSPHORUS PESTICIDES; MAGNETIC NANOPARTICLES; CATALYZED HYDROLYSIS; SELECTIVE DETECTION; MESOPOROUS CARBONS; MASS-SPECTROMETRY; FACILE SYNTHESIS; GRAPHENE OXIDE;

D O I：

10.1016/j.jelechem.2019.05.053

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An optimized detecting methyl parathion (MP) electrochemical sensor, fluorine tin oxide (FTO) electrodes modified by copper oxide doped zirconium oxide microfibers (CuO-ZrO2-MFs), has been successfully prepared. The CuO-ZrO2-MFs were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction pattern (XRD). The electrochemical and electrocatalytic performances of the CuO center dot ZrO2-MFs were investigated by cyclic voltammogram (CV) and square-wave voltammogram (SWV). The CuO center dot ZrO2-MFs as non-enzymatic MP sensor shows high sensitivity of 0.002-200 ppb and low detection limit of 0.16 ppb (signal/noise radio (S/N) = 3), which are among the best values reported in literature. Additionally, excellent selectivity and reproducibility have also been observed.

引用

页数：7

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