"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Hydroxyapatite nanopowders obtained by sol gel method synthesis and properties

B. A. SAVA1,* , C. TARDEI2,* , C. M. SIMONESCU3, L. BOROICA1, A. MELINESCU3

Affiliation

  1. National Institute of Laser, Plasma and Radiation Physics, 409th Atomistilor str., 077125, Magurele, Romania
  2. National Institute for R&D in Electrical Engineering ICPE-CA, 313 Splaiul Unirii, 031066, Bucharest, Romania
  3. University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, 1 – 7 Polizu Str., 011061, Bucharest, Romania

Abstract

The present paper deals with sol-gel preparation of hydroxyapatite powders for bio uses by performing several techniques of gelation and thermal treatments of dried gels. The hydroxyapatite formation and decomposition are checked by X-ray diffraction which showed that the tri-calcium phosphate apparition takes place as the result of thermal treatment at 700oC. The Fourier Transform Infrared spectra confirm the hydroxyapatite apparition and also the carbonyl disappearance at 900oC, which is responsible for the grey color of the powdered sample. SEM pictures showed spherique particles with narrow distribution, in the range of 35-50 nm dimensions..

Keywords

Hydroxyapatite, Nanopowders, Sol-gel, FTIR, XRD, SEM, DTA.

Citation

B. A. SAVA, C. TARDEI, C. M. SIMONESCU, L. BOROICA, A. MELINESCU, Hydroxyapatite nanopowders obtained by sol gel method synthesis and properties, Optoelectronics and Advanced Materials - Rapid Communications, 9, 11-12, November-December 2015, pp.1415-1424 (2015).

Submitted at: Sept. 20, 2015

Accepted at: Oct. 28, 2015