IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-25290-3.html
   My bibliography  Save this article

Exclusive and ultrasensitive detection of formaldehyde at room temperature using a flexible and monolithic chemiresistive sensor

Author

Listed:
  • Yong Kun Jo

    (Korea University)

  • Seong-Yong Jeong

    (Korea University)

  • Young Kook Moon

    (Korea University)

  • Young-Moo Jo

    (Korea University)

  • Ji-Wook Yoon

    (Jeonbuk National University)

  • Jong-Heun Lee

    (Korea University)

Abstract

Formaldehyde, a probable carcinogen, is a ubiquitous indoor pollutant, but its highly selective detection has been a long-standing challenge. Herein, a chemiresistive sensor that can detect ppb-level formaldehyde in an exclusive manner at room temperature is designed. The TiO2 sensor exhibits under UV illumination highly selective detection of formaldehyde and ethanol with negligible cross-responses to other indoor pollutants. The coating of a mixed matrix membrane (MMM) composed of zeolitic imidazole framework (ZIF-7) nanoparticles and polymers on TiO2 sensing films removed ethanol interference completely by molecular sieving, enabling an ultrahigh selectivity (response ratio > 50) and response (resistance ratio > 1,100) to 5 ppm formaldehyde at room temperature. Furthermore, a monolithic and flexible sensor is fabricated successfully using a TiO2 film sandwiched between a flexible polyethylene terephthalate substrate and MMM overlayer. Our work provides a strategy to achieve exclusive selectivity and high response to formaldehyde, demonstrating the promising potential of flexible gas sensors for indoor air monitoring.

Suggested Citation

  • Yong Kun Jo & Seong-Yong Jeong & Young Kook Moon & Young-Moo Jo & Ji-Wook Yoon & Jong-Heun Lee, 2021. "Exclusive and ultrasensitive detection of formaldehyde at room temperature using a flexible and monolithic chemiresistive sensor," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25290-3
    DOI: 10.1038/s41467-021-25290-3
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-25290-3
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-25290-3?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Xiaomeng Yin & Hao Zhang & Xuezhi Qiao & Xinyuan Zhou & Zhenjie Xue & Xiangyu Chen & Haochen Ye & Cancan Li & Zhe Tang & Kailin Zhang & Tie Wang, 2024. "Artificial olfactory memory system based on conductive metal-organic frameworks," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. Jie Zhang & Linshan Liu & Chaofeng Zheng & Wang Li & Chunru Wang & Taishan Wang, 2023. "Embedded nano spin sensor for in situ probing of gas adsorption inside porous organic frameworks," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Meizhen Gao & Rui-Kang Huang & Bin Zheng & Pengfei Wang & Qi Shi & Wei-Xiong Zhang & Jinxiang Dong, 2022. "Large breathing effect in ZIF-65(Zn) with expansion and contraction of the SOD cage," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    4. Jiayu Li & Wenzhe Si & Lei Shi & Ruiqin Gao & Qiuju Li & Wei An & Zicheng Zhao & Lu Zhang & Ni Bai & Xiaoxin Zou & Guo-Dong Li, 2024. "Essential role of lattice oxygen in hydrogen sensing reaction," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    5. Hong Zhang & Zuobin Zhang & Zhou Li & Hongjie Han & Weiguo Song & Jianxin Yi, 2023. "A chemiresistive-potentiometric multivariate sensor for discriminative gas detection," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25290-3. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.