Synthesis and characterization of the copper doped Ca-La apatites

M. A. Pogosova, I. L. Kalachev, A. A. Eliseev, O. V. Magdysyuk, R. E. Dinnebier, M. Jansen, P. E. Kazin

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Copper-containing Ca-La hydroxyapatites (HAPs) with chemical compositions Ca10-xLax(PO4)6O2H1.5-x-y-δCuy (x = 0-1.79; y = 0-0.57) were synthesized by solid state reaction. Structural parameters and atomic positions were refined using the Rietveld method in space group P63/m. It was found that La3+ ions occupied the Ca(2) position only and copper ions were located mainly inside the hexagonal channel. In contrast to known red-violet copper-doped Ca-apatites, the copper-doped Ca-La apatites exhibited lighter colors varying from pink to pale yellow and blue-grey tints. Chromophores in the compounds were characterized by diffuse reflectance spectroscopy, colorimetry, and resonant Raman spectroscopy.

Original languageEnglish
Pages (from-to)109-113
Number of pages5
JournalDyes and Pigments
Volume133
DOIs
Publication statusPublished - 1 Oct 2016
Externally publishedYes

Keywords

  • Apatite
  • Color
  • Copper
  • Lanthanum
  • Pigment

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