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<p>A novel electrochemical sensor based on FeMoO<sub>4</sub>/multi-walled carbon nanotubes (MWNTs) composites was structured and used for ultrasensitive detection of drug promethazine hydrochloride (PMH). FeMoO<sub>4</sub> nanomaterial was synthesized using a simple hydrothermal method and loaded with carbon nanotubes through the physical adsorption method. The as-synthesized materials were characterized via various techniques. The electrochemical characteristic of FeMoO<sub>4</sub>/MWNTs was studied with cyclic voltammetry (CV). Based on the results of electrochemical experiments, the sensor demonstrates excellent electrocatalytic activity toward PMH. Moreover, the constructed sensor has a wider linear response range (0.5–350&#xa0;μM) with a lower limit of detection (0.16&#xa0;μM). The selectivity, reproducibility, stability, and practical feasibility experiments of the sensor demonstrate its application prospects for the detection of drug PMH.</p>

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Electrochemical Sensor Based on FeMoO4/Multi-Walled Carbon Nanotubes Composites for Ultrasensitive Detection of Promethazine Hydrochloride

  • 期刊论文

  • 发表日期：

    2025年1月4日

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  • Si Zeng,
  • Deyu Liu,
  • Peiyao Zhu,
  • Yongmei Hu,
  • Fang Xu,
  • Haiping Huang

摘要

A novel electrochemical sensor based on FeMoO4/multi-walled carbon nanotubes (MWNTs) composites was structured and used for ultrasensitive detection of drug promethazine hydrochloride (PMH). FeMoO4 nanomaterial was synthesized using a simple hydrothermal method and loaded with carbon nanotubes through the physical adsorption method. The as-synthesized materials were characterized via various techniques. The electrochemical characteristic of FeMoO4/MWNTs was studied with cyclic voltammetry (CV). Based on the results of electrochemical experiments, the sensor demonstrates excellent electrocatalytic activity toward PMH. Moreover, the constructed sensor has a wider linear response range (0.5–350 μM) with a lower limit of detection (0.16 μM). The selectivity, reproducibility, stability, and practical feasibility experiments of the sensor demonstrate its application prospects for the detection of drug PMH.