Synthesis of Bi2O2CO3/In(OH)3·xH2O nanocomposites for isopropanol sensor with excellent performances at low temperature

Xin Yu Huang; Zong Tao Chi; Woochul Yang; Yonghui Deng; Wan Feng Xie

doi:10.1016/j.snb.2022.131715

Synthesis of Bi₂O₂CO₃/In(OH)₃·xH₂O nanocomposites for isopropanol sensor with excellent performances at low temperature

Xin Yu Huang, Zong Tao Chi, Woochul Yang, Yonghui Deng, Wan Feng Xie

Department of Physics

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The ability to detect a volatile organic compound in real-time, such as isopropanol (IPA) gas, is critical for human health and safety protection, especially since the sensor can operate at low temperatures and behave outstanding sensing performances. Herein, the Bi₂O₂CO₃/In(OH)₃·xH₂O nanocomposites are synthesized using a two-step hydrothermal process, particularly the surfaces of Bi₂O₂CO₃ (BCO) nanosheets were embellished with In(OH)₃·xH₂O nanoparticles. It is found that the BCO/In(OH)₃·xH₂O sensors exhibit an excellent response of 20.39, wide concentration detection range from 1 to 1000 ppm, the working temperature as low as 100 ºC, and the rapid response/recovery times of 5 s and 4 s towards 100 ppm IPA. On the other hand, the selectivity of the BCO/In(OH)₃·xH₂O sensor towards IPA is eye-catching. In particular, the enhanced IPA sensing performances might be attributed to the large specific area (52.46 m²/g). The increased conductivity of BCO/In(OH)₃·xH₂O nanocomposites due to incorporation of the In(OH)₃·xH₂O, which can significantly promote the surface-catalyzed reaction between oxygen species such as O^- and IPA molecules.

Original language	English
Article number	131715
Journal	Sensors and Actuators B: Chemical
Volume	361
DOIs	https://doi.org/10.1016/j.snb.2022.131715
State	Published - 15 Jun 2022

Keywords

BiOCO/In(OH) nanocomposites
Gas sensor
Isopropanol sensing
Low temperature

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.snb.2022.131715

Cite this

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title = "Synthesis of Bi2O2CO3/In(OH)3·xH2O nanocomposites for isopropanol sensor with excellent performances at low temperature",

abstract = "The ability to detect a volatile organic compound in real-time, such as isopropanol (IPA) gas, is critical for human health and safety protection, especially since the sensor can operate at low temperatures and behave outstanding sensing performances. Herein, the Bi2O2CO3/In(OH)3·xH2O nanocomposites are synthesized using a two-step hydrothermal process, particularly the surfaces of Bi2O2CO3 (BCO) nanosheets were embellished with In(OH)3·xH2O nanoparticles. It is found that the BCO/In(OH)3·xH2O sensors exhibit an excellent response of 20.39, wide concentration detection range from 1 to 1000 ppm, the working temperature as low as 100 ºC, and the rapid response/recovery times of 5 s and 4 s towards 100 ppm IPA. On the other hand, the selectivity of the BCO/In(OH)3·xH2O sensor towards IPA is eye-catching. In particular, the enhanced IPA sensing performances might be attributed to the large specific area (52.46 m2/g). The increased conductivity of BCO/In(OH)3·xH2O nanocomposites due to incorporation of the In(OH)3·xH2O, which can significantly promote the surface-catalyzed reaction between oxygen species such as O- and IPA molecules.",

keywords = "BiOCO/In(OH) nanocomposites, Gas sensor, Isopropanol sensing, Low temperature",

author = "Huang, {Xin Yu} and Chi, {Zong Tao} and Woochul Yang and Yonghui Deng and Xie, {Wan Feng}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

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doi = "10.1016/j.snb.2022.131715",

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T1 - Synthesis of Bi2O2CO3/In(OH)3·xH2O nanocomposites for isopropanol sensor with excellent performances at low temperature

AU - Huang, Xin Yu

AU - Chi, Zong Tao

AU - Yang, Woochul

AU - Deng, Yonghui

AU - Xie, Wan Feng

PY - 2022/6/15

Y1 - 2022/6/15

N2 - The ability to detect a volatile organic compound in real-time, such as isopropanol (IPA) gas, is critical for human health and safety protection, especially since the sensor can operate at low temperatures and behave outstanding sensing performances. Herein, the Bi2O2CO3/In(OH)3·xH2O nanocomposites are synthesized using a two-step hydrothermal process, particularly the surfaces of Bi2O2CO3 (BCO) nanosheets were embellished with In(OH)3·xH2O nanoparticles. It is found that the BCO/In(OH)3·xH2O sensors exhibit an excellent response of 20.39, wide concentration detection range from 1 to 1000 ppm, the working temperature as low as 100 ºC, and the rapid response/recovery times of 5 s and 4 s towards 100 ppm IPA. On the other hand, the selectivity of the BCO/In(OH)3·xH2O sensor towards IPA is eye-catching. In particular, the enhanced IPA sensing performances might be attributed to the large specific area (52.46 m2/g). The increased conductivity of BCO/In(OH)3·xH2O nanocomposites due to incorporation of the In(OH)3·xH2O, which can significantly promote the surface-catalyzed reaction between oxygen species such as O- and IPA molecules.

AB - The ability to detect a volatile organic compound in real-time, such as isopropanol (IPA) gas, is critical for human health and safety protection, especially since the sensor can operate at low temperatures and behave outstanding sensing performances. Herein, the Bi2O2CO3/In(OH)3·xH2O nanocomposites are synthesized using a two-step hydrothermal process, particularly the surfaces of Bi2O2CO3 (BCO) nanosheets were embellished with In(OH)3·xH2O nanoparticles. It is found that the BCO/In(OH)3·xH2O sensors exhibit an excellent response of 20.39, wide concentration detection range from 1 to 1000 ppm, the working temperature as low as 100 ºC, and the rapid response/recovery times of 5 s and 4 s towards 100 ppm IPA. On the other hand, the selectivity of the BCO/In(OH)3·xH2O sensor towards IPA is eye-catching. In particular, the enhanced IPA sensing performances might be attributed to the large specific area (52.46 m2/g). The increased conductivity of BCO/In(OH)3·xH2O nanocomposites due to incorporation of the In(OH)3·xH2O, which can significantly promote the surface-catalyzed reaction between oxygen species such as O- and IPA molecules.

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