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<p>Effective detection of <i>n</i>-butanol is essential for human health and environmental protection. Bismuth ferrite is a gas-sensitive material candidate with excellent potential, and rare earth element doping is an effective modification strategy to enhance the gas-sensitive performances of gas sensors. In this work, a series of Y-doped BiFeO<sub>3</sub> nanofibers (BFO, 1% Y-BFO, 3% Y-BFO, and 5% Y-BFO) were prepared by electrospinning. Among them, the gas sensors based on 3% Y-BFO nanofibers exhibited significantly enhanced gas-sensing performances for <i>n</i>-butanol. At an optimum operating temperature of 150°C, the synthesized 3% Y-BFO sensor has a response of 60.2 and a response/recovery time of 9/47&#xa0;s for 100&#xa0;ppm <i>n</i>-butanol. In addition, it has a lower limit of detection as low as 0.5&#xa0;ppm and excellent repeatability. Therefore, gas sensors based on Y-doped BiFeO<sub>3</sub> nanofibers represent a promising solution for the efficient detection of <i>n</i>-butanol.</p>

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Enhanced n-Butanol Sensing Properties Based on Y-Doped BiFeO3 Nanofibers

  • 期刊论文

  • 发表日期：

    2026年4月22日

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  • Lei Yue,
  • Yu Wan,
  • Yanting Wang,
  • Changhao Feng

摘要

Effective detection of n-butanol is essential for human health and environmental protection. Bismuth ferrite is a gas-sensitive material candidate with excellent potential, and rare earth element doping is an effective modification strategy to enhance the gas-sensitive performances of gas sensors. In this work, a series of Y-doped BiFeO3 nanofibers (BFO, 1% Y-BFO, 3% Y-BFO, and 5% Y-BFO) were prepared by electrospinning. Among them, the gas sensors based on 3% Y-BFO nanofibers exhibited significantly enhanced gas-sensing performances for n-butanol. At an optimum operating temperature of 150°C, the synthesized 3% Y-BFO sensor has a response of 60.2 and a response/recovery time of 9/47 s for 100 ppm n-butanol. In addition, it has a lower limit of detection as low as 0.5 ppm and excellent repeatability. Therefore, gas sensors based on Y-doped BiFeO3 nanofibers represent a promising solution for the efficient detection of n-butanol.