層状チタン酸塩H_2Ti_3O_7のリチウムイオン交換体としての性質  [in Japanese] Properties of Layered Titanate, H_2Ti_3O_7,as an Inorganic Ion-Exchanger for Lithium  [in Japanese]

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Author(s)

Abstract

Cation exchange properties of layered titanate, H<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub>, were examined in LiOH aqueous solutions of various concentrations. Three phases of exchanged products were observed; L-1 phase having interlayered water, L-2 and L-3 phases having approximate compositions of Li<sub>x</sub>H<sub>2-x</sub>(Ti<sub>3</sub>O<sub>7</sub>) where x=0.8-1.0 and Li<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> respectively. These phases could be converted to the original H<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> by the treatment in 0.5M HCl solution, i.e. the ion exchange occurred without causing any change in the host (Ti<sub>3</sub>O<sub>7</sub>) layer structure. Cation exchange for lithium ions was performed under hydrothermal conditions in the temperature range of 100° to 300°C in an autoclave. The cation exchange for lithium ions was observed up to 190°C but TiO<sub>2</sub> (anatase) was additionally formed above 150°C. The contents of TiO<sub>2</sub> increased with increasing temperature, and finally the cation exchanged products disappeared at 200°C. H<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> acted as an ion-exchanger even after 30 cycles of reversible ion-exchange reactions in 0.2M LiOH aqueous solution and 0.5M HCl solution. Only 0.09% and 0.18% of titanium in H<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> eluted into 0.1M and 0.5M HCl solutions at room temperature over a period of 3 days respectively.

Journal

  • Journal of the Ceramic Association, Japan   [List of Volumes]

    Journal of the Ceramic Association, Japan 94(1091), 621-624, 1986-07-01  [Table of Contents]

    The Ceramic Society of Japan

Codes

  • NII Article ID (NAID)
    110002316915
  • NII NACSIS-CAT ID (NCID)
    AN00245650
  • Text Lang
    JPN
  • ISSN
    00090255
  • NDL Article ID
    3094711
  • NDL Source Classification
    PA45(無機化学・無機化学工業--セラミックス)
  • NDL Source Classification
    ZP9(科学技術--化学・化学工業--無機化学・無機化学工業--セラミックス・窯業)
  • NDL Call No.
    Z17-249
  • Data Source
    NDL  NII-ELS  J-STAGE 
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