Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route
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 techni...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Cerâmica
2015-03-01
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| Series: | Cerâmica |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132015000100015&lng=en&tlng=en |
| _version_ | 1811254587271675904 |
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| author | V. D. Araújo M. R. B. Andreeta L. J. Q. Maia R. M. Nascimento F. V. Motta M. R. D. Bomio C. A. Paskocimas M. I. B. Bernardi |
| author_facet | V. D. Araújo M. R. B. Andreeta L. J. Q. Maia R. M. Nascimento F. V. Motta M. R. D. Bomio C. A. Paskocimas M. I. B. Bernardi |
| author_sort | V. D. Araújo |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-12T17:09:47Z |
| format | Article |
| id | doaj.art-03d5214191174d59978745bf63a7ec95 |
| institution | Directory Open Access Journal |
| issn | 1678-4553 |
| language | English |
| last_indexed | 2024-04-12T17:09:47Z |
| publishDate | 2015-03-01 |
| publisher | Associação Brasileira de Cerâmica |
| record_format | Article |
| series | Cerâmica |
| spelling | doaj.art-03d5214191174d59978745bf63a7ec952022-12-22T03:23:50ZengAssociação Brasileira de CerâmicaCerâmica1678-45532015-03-016135711812510.1590/0366-69132015613571853S0366-69132015000100015Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft routeV. D. AraújoM. R. B. AndreetaL. J. Q. MaiaR. M. NascimentoF. V. MottaM. R. D. BomioC. A. PaskocimasM. I. B. BernardiPbCrO4 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132015000100015&lng=en&tlng=ennanopartículasPbCrO4propriedades estruturaispropriedades microestruturaispropriedades ópticas |
| spellingShingle | V. D. Araújo M. R. B. Andreeta L. J. Q. Maia R. M. Nascimento F. V. Motta M. R. D. Bomio C. A. Paskocimas M. I. B. Bernardi Microstructural, structural and optical properties of nanoparticles of PbO-CrO3 pigment synthesized by a soft route Cerâmica nanopartículas PbCrO4 propriedades estruturais propriedades microestruturais propriedades ópticas |
| title | 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_short | 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 |
| topic | nanopartículas PbCrO4 propriedades estruturais propriedades microestruturais propriedades ópticas |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132015000100015&lng=en&tlng=en |
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