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Ammonia (NH3) is a colorless gas with a strong irritating odor, which can be harmful to human health over a certain concentration range. In this paper, MXene Ti3C2Tx and titanium oxide (TiO2) were configured at different concentrations to prepare flexible gas sensors. The NH3 sensing property of the sensors-based MXene/TiO2 composites were examined. When the volume ratio of MXene Ti3C2Tx to TiO2 is 1:1, the response time to 100 ppm NH3 environment is 57 s, the recovery time is 59 s. In addition, the response of the sensor to 100 ppm NH3 is 92.88%. The findings of this study demonstrate that the MXene/TiO2 composites possess the potential to serve as highly sensitive materials for NH3 detection at ambient temperature conditions.

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MXene/TiO2 Composites for Highly Sensitive NH3 Detection at Room Temperature

  • 会议论文

  • 发表日期：

    2025年

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  • Meichen Lin,
  • Yabo Fu,
  • Hui Liu,
  • Yingjie Jin,
  • Jiazi Shi

摘要

Ammonia (NH3) is a colorless gas with a strong irritating odor, which can be harmful to human health over a certain concentration range. In this paper, MXene Ti3C2Tx and titanium oxide (TiO2) were configured at different concentrations to prepare flexible gas sensors. The NH3 sensing property of the sensors-based MXene/TiO2 composites were examined. When the volume ratio of MXene Ti3C2Tx to TiO2 is 1:1, the response time to 100 ppm NH3 environment is 57 s, the recovery time is 59 s. In addition, the response of the sensor to 100 ppm NH3 is 92.88%. The findings of this study demonstrate that the MXene/TiO2 composites possess the potential to serve as highly sensitive materials for NH3 detection at ambient temperature conditions.