Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions

Fluoride-substituted apatites were synthesized by the standard sol-gel method and then calcined at three different temperatures: 800 °C, 1000 °C, and 1200 °C. Using a similar method, hydroxyapatite was synthesized and used as a reference material. The obtained powders were characterized by physicoch...

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Autores principales:	Lukasz Pajchel, Leszek Borkowski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fluorapatite hydroxyapatite Raman solid-state nuclear magnetic resonance biomaterial Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/307f46d611664901b5b96e17904523e4
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id	oai:doaj.org-article:307f46d611664901b5b96e17904523e4
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spelling	oai:doaj.org-article:307f46d611664901b5b96e17904523e42021-11-25T18:14:51ZSolid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions10.3390/ma142269361996-1944https://doaj.org/article/307f46d611664901b5b96e17904523e42021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6936https://doaj.org/toc/1996-1944Fluoride-substituted apatites were synthesized by the standard sol-gel method and then calcined at three different temperatures: 800 °C, 1000 °C, and 1200 °C. Using a similar method, hydroxyapatite was synthesized and used as a reference material. The obtained powders were characterized by physicochemical methods: powder X-ray diffractometry, Raman spectroscopy, transmission electron microscopy, and solid-state nuclear magnetic resonance. All these methods allowed to identify additional α-TCP phase (tricalcium phosphate) in the HAP samples heated at 1000 °C and 1200 °C while fluoridated apatites turned out to be thermally stable. Moreover, Raman spectroscopy and NMR allowed to establish that the powders substituted with fluoride ions are not pure fluorapatite and contain OH- groups in the crystal structure. All the obtained materials had crystals with a shape similar to that of biological apatite.Lukasz PajchelLeszek BorkowskiMDPI AGarticlefluorapatitehydroxyapatiteRamansolid-state nuclear magnetic resonancebiomaterialTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6936, p 6936 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fluorapatite hydroxyapatite Raman solid-state nuclear magnetic resonance biomaterial Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	fluorapatite hydroxyapatite Raman solid-state nuclear magnetic resonance biomaterial Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Lukasz Pajchel Leszek Borkowski Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions
description	Fluoride-substituted apatites were synthesized by the standard sol-gel method and then calcined at three different temperatures: 800 °C, 1000 °C, and 1200 °C. Using a similar method, hydroxyapatite was synthesized and used as a reference material. The obtained powders were characterized by physicochemical methods: powder X-ray diffractometry, Raman spectroscopy, transmission electron microscopy, and solid-state nuclear magnetic resonance. All these methods allowed to identify additional α-TCP phase (tricalcium phosphate) in the HAP samples heated at 1000 °C and 1200 °C while fluoridated apatites turned out to be thermally stable. Moreover, Raman spectroscopy and NMR allowed to establish that the powders substituted with fluoride ions are not pure fluorapatite and contain OH- groups in the crystal structure. All the obtained materials had crystals with a shape similar to that of biological apatite.
format	article
author	Lukasz Pajchel Leszek Borkowski
author_facet	Lukasz Pajchel Leszek Borkowski
author_sort	Lukasz Pajchel
title	Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions
title_short	Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions
title_full	Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions
title_fullStr	Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions
title_full_unstemmed	Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions
title_sort	solid-state nmr and raman spectroscopic investigation of fluoride-substituted apatites obtained in various thermal conditions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/307f46d611664901b5b96e17904523e4
work_keys_str_mv	AT lukaszpajchel solidstatenmrandramanspectroscopicinvestigationoffluoridesubstitutedapatitesobtainedinvariousthermalconditions AT leszekborkowski solidstatenmrandramanspectroscopicinvestigationoffluoridesubstitutedapatitesobtainedinvariousthermalconditions
_version_	1718411427934371840

Solid-State NMR and Raman Spectroscopic Investigation of Fluoride-Substituted Apatites Obtained in Various Thermal Conditions

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