Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation

Detalhes bibliográficos
Autor(a) principal: Neves,J. G.
Data de Publicação: 2021
Outros Autores: Navarro da Rocha,D., Lopes,C. C., Prado da Silva,M. H., Sinhoreti,M. A. C., Correr-Sobrinho,L., Fraga,M. A. A., Correr,A. B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000200236
Resumo: Abstract Multiphasic calcium phosphate powders were synthesized by the acidic route, using lactic acid as a chelating agent that allows the production of a stable and rich solution of calcium and phosphate ions at room temperature. After pH adjusting, without varying the concentrations of precursor solution, XRD and FTIR analyses showed different CaP phases before and after heat treatment at 1000 °C. At pH 5, brushite plate-like particles were produced, while at higher pH levels (7 to 12) nano-hydroxyapatite particles were formed. After the calcination process, partial and total decomposition of hydroxyapatite in the β-TCP phase was explained by XRF analysis due to the calcium-deficient hydroxyapatite of synthesized samples at pH 7 and 10. This work presents an important method to synthesize any desired CaP phase compositions by varying the pH level and subsequently performing heat treatment, which has a direct effect on morphology, crystallinity, and formation of different CaP powders.
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spelling Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitationbrushitecalcium pyrophosphateβ-TCPhydroxyapatiteAbstract Multiphasic calcium phosphate powders were synthesized by the acidic route, using lactic acid as a chelating agent that allows the production of a stable and rich solution of calcium and phosphate ions at room temperature. After pH adjusting, without varying the concentrations of precursor solution, XRD and FTIR analyses showed different CaP phases before and after heat treatment at 1000 °C. At pH 5, brushite plate-like particles were produced, while at higher pH levels (7 to 12) nano-hydroxyapatite particles were formed. After the calcination process, partial and total decomposition of hydroxyapatite in the β-TCP phase was explained by XRF analysis due to the calcium-deficient hydroxyapatite of synthesized samples at pH 7 and 10. This work presents an important method to synthesize any desired CaP phase compositions by varying the pH level and subsequently performing heat treatment, which has a direct effect on morphology, crystallinity, and formation of different CaP powders.Associação Brasileira de Cerâmica2021-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000200236Cerâmica v.67 n.382 2021reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132021673822965info:eu-repo/semantics/openAccessNeves,J. G.Navarro da Rocha,D.Lopes,C. C.Prado da Silva,M. H.Sinhoreti,M. A. C.Correr-Sobrinho,L.Fraga,M. A. A.Correr,A. B.eng2021-05-12T00:00:00Zoai:scielo:S0366-69132021000200236Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2021-05-12T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
title Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
spellingShingle Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
Neves,J. G.
brushite
calcium pyrophosphate
β-TCP
hydroxyapatite
title_short Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
title_full Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
title_fullStr Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
title_full_unstemmed Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
title_sort Effect of pH level and calcination on the production of calcium phosphates by acidic route of wet precipitation
author Neves,J. G.
author_facet Neves,J. G.
Navarro da Rocha,D.
Lopes,C. C.
Prado da Silva,M. H.
Sinhoreti,M. A. C.
Correr-Sobrinho,L.
Fraga,M. A. A.
Correr,A. B.
author_role author
author2 Navarro da Rocha,D.
Lopes,C. C.
Prado da Silva,M. H.
Sinhoreti,M. A. C.
Correr-Sobrinho,L.
Fraga,M. A. A.
Correr,A. B.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Neves,J. G.
Navarro da Rocha,D.
Lopes,C. C.
Prado da Silva,M. H.
Sinhoreti,M. A. C.
Correr-Sobrinho,L.
Fraga,M. A. A.
Correr,A. B.
dc.subject.por.fl_str_mv brushite
calcium pyrophosphate
β-TCP
hydroxyapatite
topic brushite
calcium pyrophosphate
β-TCP
hydroxyapatite
description Abstract Multiphasic calcium phosphate powders were synthesized by the acidic route, using lactic acid as a chelating agent that allows the production of a stable and rich solution of calcium and phosphate ions at room temperature. After pH adjusting, without varying the concentrations of precursor solution, XRD and FTIR analyses showed different CaP phases before and after heat treatment at 1000 °C. At pH 5, brushite plate-like particles were produced, while at higher pH levels (7 to 12) nano-hydroxyapatite particles were formed. After the calcination process, partial and total decomposition of hydroxyapatite in the β-TCP phase was explained by XRF analysis due to the calcium-deficient hydroxyapatite of synthesized samples at pH 7 and 10. This work presents an important method to synthesize any desired CaP phase compositions by varying the pH level and subsequently performing heat treatment, which has a direct effect on morphology, crystallinity, and formation of different CaP powders.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000200236
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000200236
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132021673822965
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.67 n.382 2021
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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