Hydrothermal synthesis of hydroxyapatite with tartaric acid

The hydrothermal synthesis of hydroxyapatite (HA) with addition of tartaric acid (TA) is presented in the paper. The role of tartaric acid is to form a complex with the Ca ions and to help in tailoring the crystallization behavior of hydroxyapatite. A comparison is made between two situations: one i...

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Bibliographic Details
Main Authors: Bucur Alexandra Ioana
Bucur Raul Alin
Szabadai Zoltán
Mosoarca Cristina
Linul Petrica A.
Orha Corina
Corporate Author: International Symposium on Analytical and Environmental Problems (23.) (2017) (Szeged)
Format: Book part
Published: 2017
Series:Proceedings of the International Symposium on Analytical and Environmental Problems 23
Kulcsszavak:Elektrokémia, Kémia
Online Access:http://acta.bibl.u-szeged.hu/56163
Description
Summary:The hydrothermal synthesis of hydroxyapatite (HA) with addition of tartaric acid (TA) is presented in the paper. The role of tartaric acid is to form a complex with the Ca ions and to help in tailoring the crystallization behavior of hydroxyapatite. A comparison is made between two situations: one is characterized by the addition of tartaric acid after the precipitation of hydroxyapatite, and the other is defined by tartaric acid being added to the Ca precursor, followed by the addition of the P precursor. The crystalline particles resulted were studied by means of XRD, FTIR, SEM and TEM, and it was concluded that they consist in hexagonal lamellar crystals with lengths < 200 nm and widths < 50 nm. The difference between the two cases is that the crystallinity degree, the uniformity in crystal dimensions and the aspect ratio are higher when TA was added before the precipitation rather than to the precipitated HA. The dimensions of the achieved crystals are similar to the mineral grains found in the hard tissues of the human body.
Physical Description:91-95
ISBN:978-963-306-563-1