新しい無機フッ化物イオン交換体としてのTi(OH)<sub>4</sub>のイオン交換特性

書誌事項

タイトル別名
  • Titanium Hydroxide as a New Inorganic Fluoride Ion Exchanger.

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説明

Although TiO2 exhibits a small fluoride ion exchange capacity, it was found that titanium hydroxide, Ti(OH)4, can exchange fluoride ion with large saturation capacity of 1.60m·mol/g. Although the H2PO4- interferes with the F- exchange, the amount of F- exchange of Ti(OH)4 was hardly changed by the coexistence of Cl-, NO3-, and SO42-. The capacity for F- exchange was almost unchanged over 4 times repetition of ion-exchange and desorption and furthermore, the elution of Ti was negligibly small. Consequently, Ti(OH)4 is expected to be a new inorganic F- exchanger for the removal of fluoride ion from wastewater.

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