The pH Level Influence on Hydroxyapatite Phase Composition Synthesized with Hydrothermal Method

Abstract

This paper reports the pH level influence on hydroxyapatite phase composition synthesized with hydrothermal method in Ca(OH)₂-H₃PO₄, Ca(NO₃)₂-(NH₄)₂HPO₄-NH₄OH, Ca(OH)₂-NH₄H₂PO₄.The obtained samples were studied with X-Ray diffraction, Fourier Transform Infrared (FTIR) and Raman spectroscopy. The one phase Ca₅H₂O₁₃P₃ high crystallinity hydroxyapatite was synthesized with hydrothermal method at pH equal to 11. The crystallinity degree was calculated from the X-Ray diffraction pattern and became 0.96. The increasing pH level from 7 to 11 provides obtaining one phase hydroxyapatite at pH level 11 instead the two phase Ca_9.04(PO₄)₆(OH)_1.68, CaHPO₄ at pH level 9 and CaPO₃(OH), Ca(OH)₂ at pH level 7.

Original language	English
Article number	012023
Journal	IOP Conference Series: Materials Science and Engineering
Volume	731
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/731/1/012023
Publication status	Published - 20 Jan 2020
Event	International Science and Technology Conference for Youth on Advanced Materials for Engineering and Medicine, AMEM 2019 - Tomsk, Russian Federation Duration: 30 Sep 2019 → 5 Oct 2019

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)

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Chuprunov, K., Yudin, A., Lysov, D., Kolesnikov, E., Kuznetsov, D., Leybo, D., Ilinykh, I., & Godymchuk, A. (2020). The pH Level Influence on Hydroxyapatite Phase Composition Synthesized with Hydrothermal Method. IOP Conference Series: Materials Science and Engineering, 731(1), [012023]. https://doi.org/10.1088/1757-899X/731/1/012023

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title = "The pH Level Influence on Hydroxyapatite Phase Composition Synthesized with Hydrothermal Method",

abstract = "This paper reports the pH level influence on hydroxyapatite phase composition synthesized with hydrothermal method in Ca(OH)2-H3PO4, Ca(NO3)2-(NH4)2HPO4-NH4OH, Ca(OH)2-NH4H2PO4.The obtained samples were studied with X-Ray diffraction, Fourier Transform Infrared (FTIR) and Raman spectroscopy. The one phase Ca5H2O13P3 high crystallinity hydroxyapatite was synthesized with hydrothermal method at pH equal to 11. The crystallinity degree was calculated from the X-Ray diffraction pattern and became 0.96. The increasing pH level from 7 to 11 provides obtaining one phase hydroxyapatite at pH level 11 instead the two phase Ca9.04(PO4)6(OH)1.68, CaHPO4 at pH level 9 and CaPO3(OH), Ca(OH)2 at pH level 7.",

author = "K. Chuprunov and A. Yudin and D. Lysov and E. Kolesnikov and D. Kuznetsov and D. Leybo and I. Ilinykh and A. Godymchuk",

year = "2020",

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journal = "IOP Conference Series: Materials Science and Engineering",

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T1 - The pH Level Influence on Hydroxyapatite Phase Composition Synthesized with Hydrothermal Method

AU - Chuprunov, K.

AU - Yudin, A.

AU - Lysov, D.

AU - Kolesnikov, E.

AU - Kuznetsov, D.

AU - Leybo, D.

AU - Ilinykh, I.

AU - Godymchuk, A.

PY - 2020/1/20

Y1 - 2020/1/20

N2 - This paper reports the pH level influence on hydroxyapatite phase composition synthesized with hydrothermal method in Ca(OH)2-H3PO4, Ca(NO3)2-(NH4)2HPO4-NH4OH, Ca(OH)2-NH4H2PO4.The obtained samples were studied with X-Ray diffraction, Fourier Transform Infrared (FTIR) and Raman spectroscopy. The one phase Ca5H2O13P3 high crystallinity hydroxyapatite was synthesized with hydrothermal method at pH equal to 11. The crystallinity degree was calculated from the X-Ray diffraction pattern and became 0.96. The increasing pH level from 7 to 11 provides obtaining one phase hydroxyapatite at pH level 11 instead the two phase Ca9.04(PO4)6(OH)1.68, CaHPO4 at pH level 9 and CaPO3(OH), Ca(OH)2 at pH level 7.

AB - This paper reports the pH level influence on hydroxyapatite phase composition synthesized with hydrothermal method in Ca(OH)2-H3PO4, Ca(NO3)2-(NH4)2HPO4-NH4OH, Ca(OH)2-NH4H2PO4.The obtained samples were studied with X-Ray diffraction, Fourier Transform Infrared (FTIR) and Raman spectroscopy. The one phase Ca5H2O13P3 high crystallinity hydroxyapatite was synthesized with hydrothermal method at pH equal to 11. The crystallinity degree was calculated from the X-Ray diffraction pattern and became 0.96. The increasing pH level from 7 to 11 provides obtaining one phase hydroxyapatite at pH level 11 instead the two phase Ca9.04(PO4)6(OH)1.68, CaHPO4 at pH level 9 and CaPO3(OH), Ca(OH)2 at pH level 7.

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