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<p>The sensitive and rapid detection of n-butanol gas is crucial for ensuring industrial safety, environmental protection, and biological health. In this study, we employed electrospinning to fabricate a series of CuBi<sub>2</sub>O<sub>4</sub> nanofibers and nanotubes, followed by thorough characterization and analysis of their structural and functional features using XRD, FE-SEM, TEM, and XPS techniques. The gas-sensing performance demonstrates that CuBi<sub>2</sub>O<sub>4</sub> nanotubes (CBO-500) exhibit an exceptionally rapid response to n-butanol, highlighting their potential for use in high-sensitivity n-butanol sensors. The sensor exhibited a response of 12.30–10&#xa0;ppm n-butanol at 150&#xa0;°C, with a rapid response time of 2&#xa0;s and a recovery time of 41&#xa0;s. Furthermore, the sensors based on CBO-500 nanotubes exhibited excellent selective. In addition, this study elucidates the underlying mechanisms responsible for the gas-sensing properties of CuBi<sub>2</sub>O<sub>4</sub> nanotubes toward n-butanol.</p>

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Rapid n-butanol gas sensor based on CuBi2O4 porous nanotubes

  • 期刊论文

  • 发表日期：

    2025年1月21日

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  • Zhenxing Wang,
  • Qingsong Luo,
  • Yiheng Huang,
  • Yan Chen,
  • Yimu Wang,
  • Changhao Feng

摘要

The sensitive and rapid detection of n-butanol gas is crucial for ensuring industrial safety, environmental protection, and biological health. In this study, we employed electrospinning to fabricate a series of CuBi2O4 nanofibers and nanotubes, followed by thorough characterization and analysis of their structural and functional features using XRD, FE-SEM, TEM, and XPS techniques. The gas-sensing performance demonstrates that CuBi2O4 nanotubes (CBO-500) exhibit an exceptionally rapid response to n-butanol, highlighting their potential for use in high-sensitivity n-butanol sensors. The sensor exhibited a response of 12.30–10 ppm n-butanol at 150 °C, with a rapid response time of 2 s and a recovery time of 41 s. Furthermore, the sensors based on CBO-500 nanotubes exhibited excellent selective. In addition, this study elucidates the underlying mechanisms responsible for the gas-sensing properties of CuBi2O4 nanotubes toward n-butanol.