A novel electrochemical sensor based on mixed cubic and spherical Cu2O composited with MWCNTs-COOH for sensitive determination of acetaminophen

文献类型： 外文期刊

第一作者： Zeng, Jin-Min

作者： Zeng, Jin-Min;Zhang, Jing;Liu, Yi-Ping;Jiang, Xin-Yu;Yu, Jin-Gang;Liu, Yi-Ping;Liu, Guo-Cong

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关键词： Cu 2 O nanoparticles; Mixed; Cubic; Spherical; Cu 2 O/MWCNTs-COOH/GCE; Determination; Acetaminophen

期刊名称：TALANTA （ 影响因子：6.1； 五年影响因子：5.5 ）

ISSN： 0039-9140

年卷期： 2025 年 295 卷

页码：

收录情况： SCI

摘要： The use of Cu2O for construction of efficient electrochemical sensors has become a hot research topic. The morphology and structure of Cu2O nanoparticles have an important influence on their catalytic performance. Mixed cubic and spherical Cu2O particles were prepared by a chemical reduction method, which were then composited with carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) through a facile ultrasonic treatment. Cu2O/MWCNTs-COOH composite was modified onto glassy carbon electrode (GCE) to construct a novel sensor (Cu2O/MWCNTs-COOH/GCE) for highly sensitive detection of acetaminophen (APAP). Under the optimized experimental conditions, Cu2O/MWCNTs-COOH/GCE exhibits a wide linear range (1-200 mu M), high sensitivity (1.022 mu A/mu M), low detection limit (LOD, 3 sigma/k, 0.25 mu M), great anti-interference property, reproducibility, repeatability, and stability for APAP detection. The practical applicability of Cu2O/MWCNTs-COOH/ GCE was verified by determining APAP in commercial tablets (recoveries: 96.0 %-104.7 %) and spiked human serum samples (recoveries: 94.0 %-104.0 %).

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