SÍNTESIS DE HIDROXIAPATITA POR SOL-GEL USANDO ÁCIDO CÍTRICO COMO SOLVENTE Y CITRATO DE CALCIO COMO PRECURSOR

Adriana Esguerra Arce; Yesid Aguilar Castro; Luisa F. Suarez; William A. Aperador

doi:10.17533/udea.rcm.19328

Authors

Adriana Esguerra Arce Universidad del Valle
Yesid Aguilar Castro Universidad del Valle
Luisa F. Suarez Universidad del Valle
William A. Aperador Militar University of New Granada

DOI:

https://doi.org/10.17533/udea.rcm.19328

Keywords:

Hydroxyapatite, chemical precipitation, calcium citrate

Abstract

HA was synthesized by a chemical precipitation method. Calcium citrate and ammonium phosphate were used as precursors under an acid citric water-based solution. The solutions employed to prepare the HA differ in molarity, citric acid/calcium source ratio and Ca/P ratio. Using scanning electron microscopy and elemental analysis, the surface characteristics and Ca/P ratio of the powder were investigated. Phases and functional groups were identified by DRX and FTIR, respectively. It was found that more diluted solutions and higher citric acid/[Ca+2] ratio causes higher Ca/P ratios in synthesized HA and smooth surfaces.

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Author Biographies

Adriana Esguerra Arce, Universidad del Valle

TPMR, Materials Engineering, Universidad del Valle. Cali, Colombia

Yesid Aguilar Castro, Universidad del Valle

TPMR, Materials Engineering, Universidad del Valle. Cali, Colombia

Luisa F. Suarez, Universidad del Valle

TPMR, Materials Engineering, Universidad del Valle. Cali, Colombia

William A. Aperador, Militar University of New Granada

Militar University of New Granada. Bogota Colombia

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