Staff View: Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior

Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior

Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500-900�C. The calcined white Sr-doped HA powders were characterized usi...

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Main Authors:	Mardziah C.M., Sopyan I., Ramesh S.
Other Authors:	25823301400
Format:	Article
Published:	2023
Subjects:	Apatite Concentration (process) Fourier transform infrared spectroscopy Hydroxyapatite Nanostructured materials Powders Sol-gel process Strontium Thermogravimetric analysis X ray diffraction X ray powder diffraction As-synthesized powder Average size Calcination temperature Calcined powder Doping concentration Field emission scanning electron microscopy FTIR HA powders High-temperature calcination Nano powders Phase-only Primary particles Secondary phase TCP phase Calcination
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spelling	my.uniten.dspace-308032023-12-29T15:53:36Z Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior Mardziah C.M. Sopyan I. Ramesh S. 25823301400 23482484000 41061958200 Apatite Concentration (process) Fourier transform infrared spectroscopy Hydroxyapatite Nanostructured materials Powders Sol-gel process Strontium Thermogravimetric analysis X ray diffraction X ray powder diffraction As-synthesized powder Average size Calcination temperature Calcined powder Doping concentration Field emission scanning electron microscopy FTIR HA powders High-temperature calcination Nano powders Phase-only Primary particles Secondary phase TCP phase Calcination Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500-900�C. The calcined white Sr-doped HA powders were characterized using differential and thermogravimetric analysis (TG/DTA), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an average size of 1-2 mm in diameter while the primary particles have a diameter of 30-150 nm in average. The calcined powders contained hydroxyapatite phase only for all doping concentration except for the smallest doping concentration, 2 mol%, where �-TCP appeared as the secondary phase. This indicates that the substitution of Sr atoms for Ca atoms have stabilized the HA phase, leading to the inhibition of the appearance of �-TCP phase upon high temperature calcination. Even, for 2 mol% Sr-doped HA, the appearance of �-TCP peak only started to appear at a temperature as high as of 900�C, compared to non-Sr doping HA which appeared at a temperature below 800�C. � Society for Biomaterials and Artificial Organs (India), 20090119-37. Final 2023-12-29T07:53:35Z 2023-12-29T07:53:35Z 2009 Article 2-s2.0-78951472715 https://www.scopus.com/inward/record.uri?eid=2-s2.0-78951472715&partnerID=40&md5=a7dfc110fdcd587bb430880a4d047772 https://irepository.uniten.edu.my/handle/123456789/30803 23 2 105 113 Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Apatite Concentration (process) Fourier transform infrared spectroscopy Hydroxyapatite Nanostructured materials Powders Sol-gel process Strontium Thermogravimetric analysis X ray diffraction X ray powder diffraction As-synthesized powder Average size Calcination temperature Calcined powder Doping concentration Field emission scanning electron microscopy FTIR HA powders High-temperature calcination Nano powders Phase-only Primary particles Secondary phase TCP phase Calcination
spellingShingle	Apatite Concentration (process) Fourier transform infrared spectroscopy Hydroxyapatite Nanostructured materials Powders Sol-gel process Strontium Thermogravimetric analysis X ray diffraction X ray powder diffraction As-synthesized powder Average size Calcination temperature Calcined powder Doping concentration Field emission scanning electron microscopy FTIR HA powders High-temperature calcination Nano powders Phase-only Primary particles Secondary phase TCP phase Calcination Mardziah C.M. Sopyan I. Ramesh S. Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior
description	Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500-900�C. The calcined white Sr-doped HA powders were characterized using differential and thermogravimetric analysis (TG/DTA), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an average size of 1-2 mm in diameter while the primary particles have a diameter of 30-150 nm in average. The calcined powders contained hydroxyapatite phase only for all doping concentration except for the smallest doping concentration, 2 mol%, where �-TCP appeared as the secondary phase. This indicates that the substitution of Sr atoms for Ca atoms have stabilized the HA phase, leading to the inhibition of the appearance of �-TCP phase upon high temperature calcination. Even, for 2 mol% Sr-doped HA, the appearance of �-TCP peak only started to appear at a temperature as high as of 900�C, compared to non-Sr doping HA which appeared at a temperature below 800�C. � Society for Biomaterials and Artificial Organs (India), 20090119-37.
author2	25823301400
author_facet	25823301400 Mardziah C.M. Sopyan I. Ramesh S.
format	Article
author	Mardziah C.M. Sopyan I. Ramesh S.
author_sort	Mardziah C.M.
title	Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior
title_short	Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior
title_full	Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior
title_fullStr	Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior
title_full_unstemmed	Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior
title_sort	strontium-doped hydroxyapatite nanopowder via sol-gel method: effect of strontium concentration and calcination temperature on phase behavior
publishDate	2023
_version_	1806424110999273472
score	13.211869

Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior

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