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Fe3O4@titanate nanocomposites: novel reclaimable adsorbents for removing radioactive ions from wastewater

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Abstract

Fabrication of reclaimable adsorbents without secondary pollution caused by dust pollution is a challenge in the field of nuclear wastewater purification and emergency treatment. In this study, novel core–shell Fe3O4@titanate nanocomposites were successfully developed to meet the demanding requirements for quickly removing the radioactive ions within only a few hours from the simulation nuclear leakage water. Adsorption experiments demonstrate that the Fe3O4@titanate nanomaterials can be regarded as efficient adsorbents with the saturated sorption capacity as high as 118.4 mg/g for Ba2+ ions. And the fast adsorption process can guarantee that the radioactive polluted water can be recovered within only few hours after a nuclear leakage. Moreover, the novel materials could be fully reclaimed by virtue of the magnetic recycling equipment because of their magnetic nature. The results demonstrate the Fe3O4@titanate nanomaterials can be used as a promising emergency radioactive adsorbent after a nuclear leakage.

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Acknowledgments

We would like to thank Prof. Fengjun Zhang at Key Lab of Groundwater Resources and Environment Ministry of Education Jilin University for the experimental support. This work was supported by National Natural Science Foundation of China (NSFC, Grant No. 51202115), Zhejiang Provincial Science foundation (Grant No. Y14F040005), and the support of K.C. Wong Education Foundation.

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    Authors and Affiliations

    1. College of Physics, Jilin University, Changchun City, 130012, People’s Republic of China

      Liang Zhou, La Li, A. A. Gromov & Wei Han

    2. School of Science, Changchun University of Science and Technology, Changchun City, 130022, People’s Republic of China

      Mingze Xu

    3. School of Materials, Ningbo University of Technology, Ningbo City, 315016, People’s Republic of China

      Guodong Wei

    4. National Research Tomsk Polytechnic University, Tomsk City, 634050, Russia

      M. V. Chubik, M. P. Chubik & A. A. Gromov

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    1. Liang Zhou
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    Correspondence to Guodong Wei or Wei Han.

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    Liang Zhou and Mingze Xu have contributed equally to this work.

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    Zhou, L., Xu, M., Wei, G. et al. Fe3O4@titanate nanocomposites: novel reclaimable adsorbents for removing radioactive ions from wastewater. J Mater Sci: Mater Electron 26, 2742–2747 (2015). https://doi.org/10.1007/s10854-015-2753-5

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