Structural characterization of zinc-substituted hydroxyapatite prepared by hydrothermal method.

Structural characterization of zinc-substituted hydroxyapatite prepared by hydrothermal method. Research Abstract Details 

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Structural characterization of zinc-substituted hydroxyapatite prepared by hydrothermal method. Abstract Text:

Ming'ou Li,Xiufeng Xiao,Rongfang Liu,Cuiyu Chen,Lizhong Huang,

Zinc-substituted hydroxyapatite (Zn-HA) powders were prepared by hydrothermal method using Ca(NO(3))(2), (NH(4))(3)PO(4) and Zn(NO(3))(2 )as reagents. X-ray fluorescence spectroscopy (XRF), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM) were used to characterize the crystalline phase, microstructure, chemical composition, morphology and thermal stability of Zn-HA. The results show that the substitution content of zinc (Zn) in Zn-HA powders prepared in NaOH solution is higher than that prepared in NH(3) solution, and is lower than that of the corresponding amount of starting materials. The substitution of the Zn ion for calcium ion causes a lower crystallinity of Zn-HA and changes the lattice parameters of Zn-HA, since the ionic radius is smaller in Zn(2+) (0.074 nm) than in Ca(2+ )(0.099 nm). Furthermore, the substitution of the Zn ions restrains the growth of Zn-HA crystal and decreases the thermal stability of Zn-HA. Zn-HA powder prepared in NH(3) solution starts to decompose at 800 degrees C when the Zn fraction increases to 15 mol%, while that prepared in NaOH solution start to decompose at 5 mol% Zn. The substitution content of Zn significantly influences the thermal stability, microstructure and morphology of Zn-HA.

Structural characterization of zinc-substituted hydroxyapatite prepared by hydrothermal method. Publishing Authors By Initials

M Li,X Xiao,R Liu,C Chen,L Huang,

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Structural characterization of zinc-substituted hydroxyapatite prepared by hydrothermal method. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of materials science. Materials in medicin

VOLUME: 19

Page Numbers: 797-803

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ISSN: 0957-4530

DAY: 1

MONTH: 08

YEAR: 2007

Structural characterization of zinc-substituted hydroxyapatite prepared by hydrothermal method. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Structural characterization of zinc-substituted hydroxyapatite prepared by hydrothermal method.

AFFILIATION: College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China.

Country: United States

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MEDLINETA: J Mater Sci Mater Med

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