Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus Pectin
<p class="orbitalabstract">In the present study, the syntheses of white and colored pigments based on aluminum, citrus pectin, and different coloring ions were performed by using the solid mixture method whit three different calcination temperatures (600 °C, 800 °C, and 1000 °C). The...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Mato Grosso do Sul
2018-05-01
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| Series: | Orbital: The Electronic Journal of Chemistry |
| Subjects: | |
| Online Access: | http://orbital.ufms.br/index.php/Chemistry/article/view/1099 |
| _version_ | 1819274642449235968 |
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| author | Mariane Dalpasquale Tamara Maria De Andrade Cristiane Regina Budziak Parabocz Fauze Jacó Anaissi |
| author_facet | Mariane Dalpasquale Tamara Maria De Andrade Cristiane Regina Budziak Parabocz Fauze Jacó Anaissi |
| author_sort | Mariane Dalpasquale |
| collection | DOAJ |
| description | <p class="orbitalabstract">In the present study, the syntheses of white and colored pigments based on aluminum, citrus pectin, and different coloring ions were performed by using the solid mixture method whit three different calcination temperatures (600 °C, 800 °C, and 1000 °C). The obtained pigments were characterized by colorimetry (CIELAB) and by absorbance and diffuse reflectance spectroscopy (VIS-NIR). All pigments presented different colorations and/or tonalities with increases in the calcination temperature as show in the calculation of the total color difference that indicated differences between all groups of pigments. The increase in the calcination temperature also influenced the values of the colorimetric coordinates and increased the values of the coordinate L* that are related to the percentage of pigment reflectance. This is because higher values of luminosity were obtained for pigments with higher reflectance. Absorbance spectra evidenced the presence of Co<sup>2+</sup> and Ni<sup>2+</sup> ions in tetrahedral sites when higher calcination temperatures were applied while Fe<sup>3+</sup> ions only occupied the octahedral interstices at higher applied temperatures. Generally, Al(pec) and Fe-Al(pec) pigments exhibited higher color stability with increases in the calcination temperature.</p><p class="orbitalabstract"> </p><p class="orbitalabstract">DOI: <a href="http://dx.doi.org/10.17807/orbital.v10i3.1099">http://dx.doi.org/10.17807/orbital.v10i3.1099</a></p><p class="orbitalabstract"> </p> |
| first_indexed | 2024-12-23T23:11:40Z |
| format | Article |
| id | doaj.art-bbb502cf23b8450d9c8f59f7530d7232 |
| institution | Directory Open Access Journal |
| issn | 1984-6428 |
| language | English |
| last_indexed | 2024-12-23T23:11:40Z |
| publishDate | 2018-05-01 |
| publisher | Universidade Federal de Mato Grosso do Sul |
| record_format | Article |
| series | Orbital: The Electronic Journal of Chemistry |
| spelling | doaj.art-bbb502cf23b8450d9c8f59f7530d72322022-12-21T17:26:38ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282018-05-0110319119910.17807/orbital.v10i3.1099486Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus PectinMariane Dalpasquale0Tamara Maria De Andrade1Cristiane Regina Budziak Parabocz2Fauze Jacó Anaissi3Universidade Estadual do Centro-OesteUniversidade Estadual do Centro-OesteUniversidade Tecnológica Federal do ParanáUniversidade Estadual do Centro-Oeste<p class="orbitalabstract">In the present study, the syntheses of white and colored pigments based on aluminum, citrus pectin, and different coloring ions were performed by using the solid mixture method whit three different calcination temperatures (600 °C, 800 °C, and 1000 °C). The obtained pigments were characterized by colorimetry (CIELAB) and by absorbance and diffuse reflectance spectroscopy (VIS-NIR). All pigments presented different colorations and/or tonalities with increases in the calcination temperature as show in the calculation of the total color difference that indicated differences between all groups of pigments. The increase in the calcination temperature also influenced the values of the colorimetric coordinates and increased the values of the coordinate L* that are related to the percentage of pigment reflectance. This is because higher values of luminosity were obtained for pigments with higher reflectance. Absorbance spectra evidenced the presence of Co<sup>2+</sup> and Ni<sup>2+</sup> ions in tetrahedral sites when higher calcination temperatures were applied while Fe<sup>3+</sup> ions only occupied the octahedral interstices at higher applied temperatures. Generally, Al(pec) and Fe-Al(pec) pigments exhibited higher color stability with increases in the calcination temperature.</p><p class="orbitalabstract"> </p><p class="orbitalabstract">DOI: <a href="http://dx.doi.org/10.17807/orbital.v10i3.1099">http://dx.doi.org/10.17807/orbital.v10i3.1099</a></p><p class="orbitalabstract"> </p>http://orbital.ufms.br/index.php/Chemistry/article/view/1099aluminatecielab (cie l*a*b*)colorreflectance. |
| spellingShingle | Mariane Dalpasquale Tamara Maria De Andrade Cristiane Regina Budziak Parabocz Fauze Jacó Anaissi Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus Pectin Orbital: The Electronic Journal of Chemistry aluminate cielab (cie l*a*b*) color reflectance. |
| title | Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus Pectin |
| title_full | Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus Pectin |
| title_fullStr | Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus Pectin |
| title_full_unstemmed | Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus Pectin |
| title_short | Influence of the Calcination Temperature on the Colorimetric Properties of Co, Fe and Ni Aluminates in Solid State Reactions Aided by Citrus Pectin |
| title_sort | influence of the calcination temperature on the colorimetric properties of co fe and ni aluminates in solid state reactions aided by citrus pectin |
| topic | aluminate cielab (cie l*a*b*) color reflectance. |
| url | http://orbital.ufms.br/index.php/Chemistry/article/view/1099 |
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