Titanium hydroxide as a new inorganic fluoride ion exchanger

Tatsumi Ishihara, Yasuhiro Shuto, Soichiro Ueshima, Ho Li Ngee, Hiroyasu Nishiguchi, Yusaku Takita

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


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 1.60 m ̇ 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.

Original languageEnglish
Pages (from-to)801-803
Number of pages3
JournalJournal of the Ceramic Society of Japan
Issue number1285
Publication statusPublished - Sept 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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