Synthesis and characterization of apatite silicated powders with wet precipitation method

Houda Labjar,Hassan Chaair,S Bourekkadi,J Abouchabaka,O Omari,K Slimani

doi:10.1051/e3sconf/202123400106

Houda Labjar, Hassan Chaair + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/202123400106

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Journal: E3S Web of Conferences	Publication Date: Jan 1, 2021
Citations: 2	License type: CC BY 4.0

Affiliation: University of Hassan II Casablanca

Abstract

The synthesis of apatite silicated Ca10(PO4)6-x(SiO4)x(OH)2-x (SiHA) with 0≤x≤2 was investigated using a wet precipitation method followed by heat treatment using calcium carbonate CaCO3 and phosphoric acid H3PO4 and silicon tetraacetate SiC8H20O4 (TEOS) in medium of water ethanol, with three different silicate concentrations. After drying, the samples are ground and then characterized by different analytical techniques like X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning electron Microscopy (SEM) and chemical analysis.

Highlights

The Synthetic apatite (HA) is one of the most important bioceramics used in orthopedic and dental surgery
The calcium phosphate apatites are a family of ionic compounds described by the chemical formula Mex (XO4) y (Y) z wherein Me is a bivalent metal (Ca2+, Sr2+, Ba2+, Pb2+ ...), XO4 is a trivalent anion (PO43, AsO43, SiO44-...) and Y is a monovalent anion (F, Cl, Br, I, OH- ...) [3]
The bioactive behavior of the apatite may be improved by approximating the general formula of the bone that is: 1.7 Ca8.3 (PO4) 4.3 (CO3) 1.0 (HPO4) 0.7 (CO3, OH) 0.3

Summary

Introduction

The Synthetic apatite (HA) is one of the most important bioceramics used in orthopedic and dental surgery. The apatite is commonly used as a bioceramic due to its biological properties of biocompatibility and bioactivity [2]. The bioactive behavior of the apatite may be improved by approximating the general formula of the bone that is: 1.7 Ca8.3 (PO4) 4.3 (CO3) 1.0 (HPO4) 0.7 (CO3, OH) 0.3. This approach can be achieved by incorporating as component (Si, Mg, V, As ...). To this end, we are interested in the insertion of Silicate on phosphocalcic apatite. The model chosen for this substitution is according to the following theoretical formula [4]: Ca10 (PO4)6-x (SiO4)x (OH)2-x with 0 ≤ x ≤ 2 (1)

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Conclusion