Title of article :
Particle size and shape modification of hydroxyapatite nanostructures synthesized via a complexing agent-assisted route
Author/Authors :
Mohandes، نويسنده , , Fatemeh and Salavati-Niasari، نويسنده , , Masoud، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
11
From page :
288
To page :
298
Abstract :
In this work, hydroxyapatite (HAP), Ca10(PO4)6(OH)2, nanostructures including nanorods, nanobundles and nanoparticles have been prepared via a simple precipitation method. In the present method, Ca(NO3)2·4H2O and (NH4)2HPO4 were used as calcium and phosphorus precursors, respectively. Besides, the Schiff bases derived from 2-hydroxyacetophenone and different diamines were used as complexing agents for the in situ formation of Ca2 + complexes. The formation mechanism of 0-D and 1-D nanostructures of HAP was also considered. When the complexing agents could coordinate to the Ca2 + ions through N and O atoms to form the [CaN2O2]2 + complexes, HAP nanoparticles were generated. On the other hand, nanorods and nanobundles of HAP were obtained by forming the [CaN2]2 + as well as [CaO2]2 + complexes in the reaction solution. This work is the first successful synthesis of pure HAP nanostructures in the presence of Schiff bases instead of using the common surfactants.
Keywords :
Nanostructures , Complexing agent , Hydroxyapatite
Journal title :
Materials Science and Engineering C
Serial Year :
2014
Journal title :
Materials Science and Engineering C
Record number :
2104506
Link To Document :
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