Preparations and characterizations of γ-Ce2S3 red pigments from Pr-doped CeO2 with improved thermal stabilities
| Autor: | Zong-Yang Shen, Zhumei Wang, Y. Q. Gao, Zhi Xiang Xie, Yueming Li |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Dopant Doping chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Sulfur Hydrothermal circulation Red Color 0104 chemical sciences Cerium Pigment chemistry visual_art visual_art.visual_art_medium General Materials Science Chromaticity 0210 nano-technology Nuclear chemistry |
| Zdroj: | Applied Physics A. 124 |
| ISSN: | 1432-0630 0947-8396 |
| DOI: | 10.1007/s00339-018-1588-3 |
| Popis: | The Pr-doped γ-Ce2S3 red pigment was prepared by a hydrothermal combine sulfurize process. CeCl3·7H2O, Pr6O11, and CS2 were used as cerium source, dopant source, and sulfur source, respectively. Pr-doped CeO2 precursor was prepared at 180 °C with hydrothermal method, followed by sulfurize treatment 150 min at 900 °C. The effect of doped proportion, sulfurize condition to phase composition of red pigment was observed. Furthermore, the thermal stabilities and chromaticity of as-prepared pigment were investigated. Results of calcinations in the air and color measure indicated that Pr-doping enhances the resistant temperature for oxidization of pigment. A red color (L* = 25.58, a* = 29.47, b* = 17.27) was still remained after heated at 470 °C in the air. |
| Databáze: | OpenAIRE |
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