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Surface and physicochemical characterization of phosphates vivianite, Fe2(PO4)3 and hydroxyapatite, Ca5(PO4)3OH
DANIEL LUNA ZARAGOZA
ELIZABETH TERESITA ROMERO GUZMAN
LAZARO RAYMUNDO REYES GUTIERREZ
Acceso Abierto
Atribución-NoComercial-SinDerivadas
http://dx.doi.org/10.4236/jmmce.2009.88052
Phosphates
Surface
Site density
Mass titration
"Hydroxyapatite is a calcium phosphate in the apatite group. It has numerous applications due to its particular properties including the sorption of metallic ions. This makes it useful for the treatment of contaminated groundwater and for soil decontamination. The least expensive source of hydroxyapatite for synthesis is bovine bone, since this is a waste material. Vivianite is an iron phosphate which has received little study. Like hydroxyapatite, it has particular properties. This paper describes the method of obtaining these phosphates; calcium phosphate from bovine bone, and iron phosphate by synthesis. Also described are the methods of purifying the materials and characterization of these two phosphates by X-ray diffraction, infrared analysis, thermogravimetric and differential scanning calorimetric analysis, scanning electron microscopy, and surface area by the BET method. Physicochemical characteristics of hydroxyapatite obtained from bovine bone are described, and preliminary results are presented of an investigation into whether hydroxyapatite and iron phosphate are suitable as a permeable reactive barrier for the treatment of metallic and radionuclide contaminants."
Scientific Research Publishing (SCIRP)
2009-08
Artículo
Inglés
Público en general
D. Luna-Zaragoza, E. Romero-Guzmán and L. Reyes-Gutiérrez, "Surface and Physicochemical Characterization of Phosphates Vivianite, Fe2(PO4)3 and Hydroxyapatite, Ca5(PO4)3OH," Journal of Minerals and Materials Characterization and Engineering, Vol. 8 No. 8, 2009, pp. 591-609. doi: 10.4236/jmmce.2009.88052.
CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA
Versión publicada
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