Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , , , |
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=S0366-69132015000100015 |
Resumo: | PbCrO4 and Pb2CrO5 particles were synthesized by the polymeric precursor method. Structural and microstructural properties of the particles were characterized by scanning electron microscopy with field emission gun, X-ray diffraction, and Raman spectroscopy techniques. The diffuse reflectance technique was employed to study the optical properties in the 400-700 nm range. The optical bandgap of the samples was obtained indirectly. Colorimetric coordinates L*, a*, b* were calculated for the pigment powders as a function of the heat treatment (400-700 ºC). The powders displayed colors ranging from green to red. X-ray diffraction patterns showed the presence of monoclinic PbCrO4 phase in green samples, while red powders had a monoclinic Pb2CrO5 phase structure. The Raman spectra of the PbCrO4 and Pb2CrO5 powders were in good agreement with those reported in the literature. The synthesized compounds can be used as green and red pigments with high thermal stability. |
id |
USP-29_720df139d684b64c0537b5f01a44c329 |
---|---|
oai_identifier_str |
oai:scielo:S0366-69132015000100015 |
network_acronym_str |
USP-29 |
network_name_str |
Cerâmica (São Paulo. Online) |
repository_id_str |
|
spelling |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft routenanoparticlesPbCrO4structural propertiesmicrostructural propertiesoptical propertiesPbCrO4 and Pb2CrO5 particles were synthesized by the polymeric precursor method. Structural and microstructural properties of the particles were characterized by scanning electron microscopy with field emission gun, X-ray diffraction, and Raman spectroscopy techniques. The diffuse reflectance technique was employed to study the optical properties in the 400-700 nm range. The optical bandgap of the samples was obtained indirectly. Colorimetric coordinates L*, a*, b* were calculated for the pigment powders as a function of the heat treatment (400-700 ºC). The powders displayed colors ranging from green to red. X-ray diffraction patterns showed the presence of monoclinic PbCrO4 phase in green samples, while red powders had a monoclinic Pb2CrO5 phase structure. The Raman spectra of the PbCrO4 and Pb2CrO5 powders were in good agreement with those reported in the literature. The synthesized compounds can be used as green and red pigments with high thermal stability.Associação Brasileira de Cerâmica2015-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132015000100015Cerâmica v.61 n.357 2015reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132015613571853info:eu-repo/semantics/openAccessAraújo,V. D.Andreeta,M. R. B.Maia,L. J. Q.Nascimento,R. M.Motta,F. V.Bomio,M. R. D.Paskocimas,C. A.Bernardi,M. I. B.eng2015-06-02T00:00:00Zoai:scielo:S0366-69132015000100015Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2015-06-02T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route |
title |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route |
spellingShingle |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route Araújo,V. D. nanoparticles PbCrO4 structural properties microstructural properties optical properties |
title_short |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route |
title_full |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route |
title_fullStr |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route |
title_full_unstemmed |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route |
title_sort |
Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route |
author |
Araújo,V. D. |
author_facet |
Araújo,V. D. Andreeta,M. R. B. Maia,L. J. Q. Nascimento,R. M. Motta,F. V. Bomio,M. R. D. Paskocimas,C. A. Bernardi,M. I. B. |
author_role |
author |
author2 |
Andreeta,M. R. B. Maia,L. J. Q. Nascimento,R. M. Motta,F. V. Bomio,M. R. D. Paskocimas,C. A. Bernardi,M. I. B. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Araújo,V. D. Andreeta,M. R. B. Maia,L. J. Q. Nascimento,R. M. Motta,F. V. Bomio,M. R. D. Paskocimas,C. A. Bernardi,M. I. B. |
dc.subject.por.fl_str_mv |
nanoparticles PbCrO4 structural properties microstructural properties optical properties |
topic |
nanoparticles PbCrO4 structural properties microstructural properties optical properties |
description |
PbCrO4 and Pb2CrO5 particles were synthesized by the polymeric precursor method. Structural and microstructural properties of the particles were characterized by scanning electron microscopy with field emission gun, X-ray diffraction, and Raman spectroscopy techniques. The diffuse reflectance technique was employed to study the optical properties in the 400-700 nm range. The optical bandgap of the samples was obtained indirectly. Colorimetric coordinates L*, a*, b* were calculated for the pigment powders as a function of the heat treatment (400-700 ºC). The powders displayed colors ranging from green to red. X-ray diffraction patterns showed the presence of monoclinic PbCrO4 phase in green samples, while red powders had a monoclinic Pb2CrO5 phase structure. The Raman spectra of the PbCrO4 and Pb2CrO5 powders were in good agreement with those reported in the literature. The synthesized compounds can be used as green and red pigments with high thermal stability. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-03-01 |
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=S0366-69132015000100015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132015000100015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0366-69132015613571853 |
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.61 n.357 2015 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 |
_version_ |
1748936783065776128 |