Hydrothermal synthesis of vanadate/phosphate hydroxyapatite solid solutions

Ayumu Onda, Shuhei Ogo, Koji Kajiyoshi, Kazumichi Yanagisawa

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A series of vanadate substituted hydroxyapatite was directly prepared by a simple hydrothermal method at low temperature (110-200 °C) in NaOH solutions for 14 h. The apatite samples were characterized by powder X-ray diffraction, ICP chemical analysis, nitrogen physisorption, TEM, and FTIR measurements. The vanadate/phosphate hydroxyapatite solid solution, i.e., Ca10(VO4)x(PO4)6 - x(OH)2 (xε{lunate}I = 0, 1, 2, 3, 4, 5, and 6), had a single phase of apatite structure. The lattice parameters increased linearly with increasing V content (x) with obeying the Vegard's law. All Ca10(VO4)x(PO4)6 - x(OH)2 (x = I) samples showed the OH vibration band around 3560 cm- 1. The white apatite samples were column crystals with length of about 40-100 nm and width of about 25-40 nm.

Original languageEnglish
Pages (from-to)1406-1409
Number of pages4
JournalMaterials Letters
Volume62
Issue number8-9
DOIs
Publication statusPublished - 2008 Mar 31
Externally publishedYes

Fingerprint

Apatites
Vanadates
vanadates
Hydrothermal synthesis
Apatite
apatites
Durapatite
Hydroxyapatite
Solid solutions
phosphates
Phosphates
solid solutions
synthesis
Physisorption
chemical analysis
X ray powder diffraction
Lattice constants
lattice parameters
Nitrogen
Transmission electron microscopy

Keywords

  • Apatite
  • Catalyst
  • Nanomaterials
  • Phosphate
  • Solid solution
  • Vanadate

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Hydrothermal synthesis of vanadate/phosphate hydroxyapatite solid solutions. / Onda, Ayumu; Ogo, Shuhei; Kajiyoshi, Koji; Yanagisawa, Kazumichi.

In: Materials Letters, Vol. 62, No. 8-9, 31.03.2008, p. 1406-1409.

Research output: Contribution to journalArticle

Onda, Ayumu ; Ogo, Shuhei ; Kajiyoshi, Koji ; Yanagisawa, Kazumichi. / Hydrothermal synthesis of vanadate/phosphate hydroxyapatite solid solutions. In: Materials Letters. 2008 ; Vol. 62, No. 8-9. pp. 1406-1409.
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