Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment
Cobalt blue pigments, which mainly comprise CoAl2O4, are widely synthesized as nano-scale particles using the coprecipitation method. Such ultrafine powders are necessary for the ceramics industry because of their significant effect on the color of glaze and bulk tiles. In this paper, cobalt blue pi...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2021-11-01
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| Series: | Journal of Asian Ceramic Societies |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21870764.2021.2004727 |
| _version_ | 1818931452662775808 |
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| author | Weiran Zhang Jieqin Li Fan Zhong Guohua Wu Haiyun Jiang Weili Zhang Qilong Liu |
| author_facet | Weiran Zhang Jieqin Li Fan Zhong Guohua Wu Haiyun Jiang Weili Zhang Qilong Liu |
| author_sort | Weiran Zhang |
| collection | DOAJ |
| description | Cobalt blue pigments, which mainly comprise CoAl2O4, are widely synthesized as nano-scale particles using the coprecipitation method. Such ultrafine powders are necessary for the ceramics industry because of their significant effect on the color of glaze and bulk tiles. In this paper, cobalt blue pigments have been prepared using the coprecipitation method and then subjected to supercritical fluid drying. The differences in their physicochemical and optical properties are characterized using a series of analysis including X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive spectrometer (EDS), and CIE-L*a*b*colorimetry analysis. The results indicate that the CoAl2O4 pigments subjected to supercritical fluid drying exhibit a fine-scale structure, a crystallite size of approximately 52 nm at 1400°C, and an excellent stability at high temperatures. They also present a vivid blue color, with improved brightness and hue than those of other cobalt blue pigments. Furthermore, this study elucidates the promising potential of supercritical fluid drying for fabricating nano-sized CoAl2O4 pigments with excellent optical and physicochemical properties. |
| first_indexed | 2024-12-20T04:16:49Z |
| format | Article |
| id | doaj.art-9936829297e54d569c0c79406e7bd6f3 |
| institution | Directory Open Access Journal |
| issn | 2187-0764 |
| language | English |
| last_indexed | 2024-12-20T04:16:49Z |
| publishDate | 2021-11-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj.art-9936829297e54d569c0c79406e7bd6f32022-12-21T19:53:46ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642021-11-01001710.1080/21870764.2021.20047272004727Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigmentWeiran Zhang0Jieqin Li1Fan Zhong2Guohua Wu3Haiyun Jiang4Weili Zhang5Qilong Liu6Hunan University of TechnologyHunan University of TechnologyHunan University of TechnologyHunan University of TechnologyHunan University of TechnologyHunan University of TechnologyHunan University of TechnologyCobalt blue pigments, which mainly comprise CoAl2O4, are widely synthesized as nano-scale particles using the coprecipitation method. Such ultrafine powders are necessary for the ceramics industry because of their significant effect on the color of glaze and bulk tiles. In this paper, cobalt blue pigments have been prepared using the coprecipitation method and then subjected to supercritical fluid drying. The differences in their physicochemical and optical properties are characterized using a series of analysis including X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive spectrometer (EDS), and CIE-L*a*b*colorimetry analysis. The results indicate that the CoAl2O4 pigments subjected to supercritical fluid drying exhibit a fine-scale structure, a crystallite size of approximately 52 nm at 1400°C, and an excellent stability at high temperatures. They also present a vivid blue color, with improved brightness and hue than those of other cobalt blue pigments. Furthermore, this study elucidates the promising potential of supercritical fluid drying for fabricating nano-sized CoAl2O4 pigments with excellent optical and physicochemical properties.http://dx.doi.org/10.1080/21870764.2021.2004727nano-sized pigmentcoal2o4supercritical dryingcoprecipitation method |
| spellingShingle | Weiran Zhang Jieqin Li Fan Zhong Guohua Wu Haiyun Jiang Weili Zhang Qilong Liu Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment Journal of Asian Ceramic Societies nano-sized pigment coal2o4 supercritical drying coprecipitation method |
| title | Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment |
| title_full | Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment |
| title_fullStr | Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment |
| title_full_unstemmed | Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment |
| title_short | Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment |
| title_sort | preparation and characterization of supercritical fluid fried coal2o4 cobalt blue nano pigment |
| topic | nano-sized pigment coal2o4 supercritical drying coprecipitation method |
| url | http://dx.doi.org/10.1080/21870764.2021.2004727 |
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