Low temperature synthesis of bioactive TiO2 thin film by two-step treatment

F. Xiao, K. Tsuru, Satoshi Hayakawa, A. Osaka

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Bioactive TiO2 films were deposited on Ti substrates by two-step treatment near room temperature. A well-crystalline TiO2 gel film was obtained on Ti by soaking in TiF4+ H2O2 solution at 60° C for 24 h. Subsequent cathode polarization precipitated calcium hydroxide. Calcium carbonate appeared after samples soaking in a Kokubo simulated body fluid due to the reaction between calcium hydroxide and bicarbonate ions. Calcium hydroxide dissolved into SBF, supersaturated with calcium ions, favored apatite nucleation. Apatite thus deposited without heating the Ti substrates. This method was applicable to substrates other than Ti.

Original languageEnglish
Pages (from-to)537-540
Number of pages4
JournalKey Engineering Materials
Volume240-242
Publication statusPublished - 2003

Fingerprint

Calcium Hydroxide
Hydrated lime
Apatites
Apatite
Thin films
Substrates
Calcium Carbonate
Body fluids
Ions
Calcium carbonate
Bicarbonates
Temperature
Calcium
Cathodes
Nucleation
Gels
Polarization
Crystalline materials
Heating

Keywords

  • Anatase
  • Cathode polarization
  • Hydrogen Peroxide
  • Hydroxyapatite
  • SBF
  • Titanium
  • Titanium oxide thin films
  • Titanium Tetrafluoride

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Low temperature synthesis of bioactive TiO2 thin film by two-step treatment. / Xiao, F.; Tsuru, K.; Hayakawa, Satoshi; Osaka, A.

In: Key Engineering Materials, Vol. 240-242, 2003, p. 537-540.

Research output: Contribution to journalArticle

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AB - Bioactive TiO2 films were deposited on Ti substrates by two-step treatment near room temperature. A well-crystalline TiO2 gel film was obtained on Ti by soaking in TiF4+ H2O2 solution at 60° C for 24 h. Subsequent cathode polarization precipitated calcium hydroxide. Calcium carbonate appeared after samples soaking in a Kokubo simulated body fluid due to the reaction between calcium hydroxide and bicarbonate ions. Calcium hydroxide dissolved into SBF, supersaturated with calcium ions, favored apatite nucleation. Apatite thus deposited without heating the Ti substrates. This method was applicable to substrates other than Ti.

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