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Template-Free Fabrication of Bi2O3 and (BiO)2CO3 Nanotubes and Their Application in Water Treatment

Authors

  • Fan Qin,

    1. Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, 430073 (P.R. China), Fax: (+86) 2787195671
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  • Guangfang Li,

    1. Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, 430073 (P.R. China), Fax: (+86) 2787195671
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  • Runming Wang,

    1. Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, 430073 (P.R. China), Fax: (+86) 2787195671
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  • Jiliang Wu,

    1. Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, 430073 (P.R. China), Fax: (+86) 2787195671
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  • Prof. Hongzhe Sun,

    1. Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR (P.R. China)
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  • Prof. Rong Chen

    Corresponding author
    1. Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, 430073 (P.R. China), Fax: (+86) 2787195671
    • Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, 430073 (P.R. China), Fax: (+86) 2787195671===

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Abstract

Uniform bismuth oxide (Bi2O3) and bismuth subcarbonate ((BiO)2CO3) nanotubes were successfully synthesized by a facile solvothermal method without the need for any surfactants or templates. The synergistic effect of ethylene glycol (EG) and urea played a critical role in the formation of the tubular nanostructures. These Bi2O3 and (BiO)2CO3 nanotubes exhibited excellent CrVI-removal capacity. Bi2O3 nanotubes, with a maximum CrVI-removal capacity of 79 mg g−1, possessed high removal ability in a wide range of pH values (3–11). Moreover, Bi2O3 and (BiO)2CO3 nanotubes also displayed highly efficient photocatalytic activity for the degradation of RhB under visible-light irradiation. This work not only demonstrates a new and facile route for the fabrication of Bi2O3 and (BiO)2CO3 nanotubes, but also provides new promising adsorbents for the removal of heavy-metal ions and potential photocatalysts for environmental remediation.

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