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  • Potassium Niobate Nanolamina: A Promising Adsorbent for Entrapment of Radioactive Cations from Water

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    Author(s)
    Sun, Jin
    Yang, Dongjiang
    Sun, Cuihua
    Liu, Long
    Yang, Shuanglei
    Jia, Yi Alec
    Cai, Rongsheng
    Yao, Xiangdong
    Griffith University Author(s)
    Yao, Xiangdong
    Yang, Dongjiang
    Jia, Yi
    Year published
    2014
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    Abstract
    Processing and managing radioactive waste is a great challenge worldwide as it is extremely difficult and costly; the radioactive species, cations or anions, leaked into the environment are a serious threat to the health of present and future generations. We report layered potassium niobate (K4Nb6O17) nanolamina as adsorbent to remove toxic Sr2+, Ba2+ and Cs+ cations from wastewater. The results show that K4Nb6O17 nanolamina can permanently confine the toxic cations within the interlayer spacing via a considerable deformation of the metastable layered structure during the ion exchange process. At the same time, the nanolaminar ...
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    Processing and managing radioactive waste is a great challenge worldwide as it is extremely difficult and costly; the radioactive species, cations or anions, leaked into the environment are a serious threat to the health of present and future generations. We report layered potassium niobate (K4Nb6O17) nanolamina as adsorbent to remove toxic Sr2+, Ba2+ and Cs+ cations from wastewater. The results show that K4Nb6O17 nanolamina can permanently confine the toxic cations within the interlayer spacing via a considerable deformation of the metastable layered structure during the ion exchange process. At the same time, the nanolaminar adsorbent exhibits prompt adsorption kinetics, high adsorption capacity and selectivity, and superior acid resistance. These merits make it be a promising material as ion exchanger for the removal of radioactive cations from wastewater.
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    Conference Title
    SCIENTIFIC REPORTS
    Volume
    4
    Publisher URI
    http://isem.uow.edu.au/UOW166554.html
    DOI
    https://doi.org/10.1038/srep07313
    Copyright Statement
    © The Author(s) 2014. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/
    Subject
    Environmental Sciences not elsewhere classified
    Inorganic Chemistry not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/67991
    Collection
    • Conference outputs

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