IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v14y2023i1d10.1038_s41467-023-41056-5.html
   My bibliography  Save this article

Nonporous amorphous superadsorbents for highly effective and selective adsorption of iodine in water

Author

Listed:
  • Wei Zhou

    (Hunan University)

  • Aimin Li

    (Hunan University)

  • Min Zhou

    (Hunan University
    Hunan Normal University)

  • Yiyao Xu

    (Hunan University)

  • Yi Zhang

    (Hunan University)

  • Qing He

    (Hunan University)

Abstract

Adsorbents widely utilized for environmental remediation, water purification, and gas storage have been usually reported to be either porous or crystalline materials. In this contribution, we report the synthesis of two covalent organic superphane cages, that are utilized as the nonporous amorphous superadsorbents for aqueous iodine adsorption with the record–breaking iodine adsorption capability and selectivity. In the static adsorption system, the cages exhibit iodine uptake capacity of up to 8.41 g g−1 in I2 aqueous solution and 9.01 g g−1 in I3− (KI/I2) aqueous solution, respectively, even in the presence of a large excess of competing anions. In the dynamic flow-through experiment, the aqueous iodine adsorption capability for I2 and I3− can reach up to 3.59 and 5.79 g g−1, respectively. Moreover, these two superphane cages are able to remove trace iodine in aqueous media from ppm level (5.0 ppm) down to ppb level concentration (as low as 11 ppb). Based on a binding–induced adsorption mechanism, such nonporous amorphous molecular materials prove superior to all existing porous adsorbents. This study can open up a new avenue for development of state–of–the–art adsorption materials for practical uses with conceptionally new nonporous amorphous superadsorbents (NAS).

Suggested Citation

  • Wei Zhou & Aimin Li & Min Zhou & Yiyao Xu & Yi Zhang & Qing He, 2023. "Nonporous amorphous superadsorbents for highly effective and selective adsorption of iodine in water," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41056-5
    DOI: 10.1038/s41467-023-41056-5
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-023-41056-5
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-023-41056-5?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
    ---><---

    References listed on IDEAS

    as
    1. Ya-Jie Liu & Yi-Fan Sun & Si-Hao Shen & San-Tai Wang & Zhuang-Hua Liu & Wei-Hui Fang & Dominic S. Wright & Jian Zhang, 2022. "Water-stable porous Al24 Archimedean solids for removal of trace iodine," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Yuting Lei & Guihua Zhang & Qinglan Zhang & Ling Yu & Hua Li & Haili Yu & Yi He, 2021. "Visualization of gaseous iodine adsorption on single zeolitic imidazolate framework-90 particles," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      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:14:y:2023:i:1:d:10.1038_s41467-023-41056-5. 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.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.