Hydrothermal synthesis of vanadate/phosphate hydroxyapatite solid solutions

Ayumu Onda, Shuhei Ogo, Koji Kajiyoshi, Kazumichi Yanagisawa

Research output: Contribution to journalArticle

24 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

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Hydrothermal synthesis of vanadate/phosphate hydroxyapatite solid solutions'. Together they form a unique fingerprint.

  • Cite this