Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (6): 143 doi: 10.1007/s41365-016-0135-1


Efficient removal of Co(II) from aqueous solution by titanate sodium nanotubes

Dong-Mei Li 1, Fei-Ze Li 1, Jia-Li Liao 2, Ji-Jun Yang1, Bing Li 2, Yun-Ming Chen2, Yuan-You Yang1, Jin-Song Zhang2, Jun Tang1, Ning Liu1   

  1. 1 Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
    2 Nuclear Power Institute of China, Chengdu 610041, China
  • Contact: Ning Liu
  • Supported by:

    This work was supported by the Applied Basic Research Programs Funded Project of Sichuan Province (No 2012JY0100), National Natural Science Foundation and China Academy of Engineering Physics joint fund (No U1330125) and the National Fund of China for Fostering Talents in Basic Science (J1210004).

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Dong-Mei Li, Fei-Ze Li, Jia-Li Liao, Ji-Jun Yang, Bing Li, Yun-Ming Chen, Yuan-You Yang, Jin-Song Zhang, Jun Tang, Ning Liu. Efficient removal of Co(II) from aqueous solution by titanate sodium nanotubes.Nuclear Science and Techniques, 2016, 27(6): 143     doi: 10.1007/s41365-016-0135-1


In this paper, a novel material for Co(II) adsorption, titanate sodium nanotubes (Na2Ti2O5-NTs) were synthesized and characterized, and then they were used to remove Co(II) from aqueous solution and compared with titanic acid nanotubes (H2Ti2O5-NTs) and potassium hexatitanate whiskers (K2Ti6O13). The results showed that the adsorption of Co(II) on the materials was dependent on pH values and was a spontaneous, endothermic process. Specifically, Na2Ti2O5-NTs exhibited much more efficient ability to adsorb Co(II) from aqueous solution, with the maximum adsorption capacity of 85.25 mg/g. Furthermore, Na2Ti2O5-NTs could selectively adsorb Co(II) from aqueous solution containing coexisting ions (Na+, K+, Mg2+ , and Ca2+ ). The results suggested that  Na2Ti2O5-NTs were potential effective adsorbents for removal of Co(II) or cobalt-60 from wastewater.

Key words: Titanate sodium nanotubes, Synthesis, Co(II), Adsorption