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Mineralizer effects on the synthesis of amorphous chromium hydroxide and chromium oxide green pigment using hydrothermal reduction method
Alternative TitleDyes Pigment.
Wei, G. Y.; Qu, J. K.; Yu, Z. H.; Li, Y. L.; Guo, Q.; Qi, T.
2015
Source PublicationDyes and Pigments
IssueFEBPages:487-495
AbstractA chromium oxide green pigment was prepared by thermal decomposition of chromium hydroxide via hydrothermal reduction of a high concentration mixture of Na2CrO4 (300 g/L) using NaHCO3 as a mineralizer. The mineralizer effects on the hydrothermal process, conversion of chromate, properties of amorphous Cr(OH)(3), and color performance of Cr2O3 were investigated. Compared with sodium carbonate and urea, sodium bicarbonate significantly reduces the Na2CrO4 concentration and, consequently, improves the conversion of Na2CrO4 during the hydrothermal process. Additionally, homogeneous particles were obtained by adding NaHCO3. The changes in the amount of trapped water, oxygen chemisorption, and negative charge on the surfaces of chromium hydroxide particles caused by adding a mineralizer were analyzed using Fourier-transform infrared spectroscopy and zeta potential analysis. The Cr2O3 pigments were characterized using X-ray diffraction, scanning electron microscopy, and an automatic differential colorimeter. A good color performance by the Cr2O3 pigment, comparable to that of a commercial pigment, was obtained. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordChromium Oxide Green Pigment Hydrothermal Reduction Mineralizer Chromium Hydroxide Color Performance Thermal-decomposition Color Performance Thermodynamic Model Magnetic-properties Cr2o3 Solubility Nanoparticles Kinetics Complexes Mechanism
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Indexed BySCI
Language英语
WOS IDWOS:000346543200062
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11854
Collection研究所(批量导入)
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GB/T 7714
Wei, G. Y.,Qu, J. K.,Yu, Z. H.,et al. Mineralizer effects on the synthesis of amorphous chromium hydroxide and chromium oxide green pigment using hydrothermal reduction method[J]. Dyes and Pigments,2015(FEB):487-495.
APA Wei, G. Y.,Qu, J. K.,Yu, Z. H.,Li, Y. L.,Guo, Q.,&Qi, T..(2015).Mineralizer effects on the synthesis of amorphous chromium hydroxide and chromium oxide green pigment using hydrothermal reduction method.Dyes and Pigments(FEB),487-495.
MLA Wei, G. Y.,et al."Mineralizer effects on the synthesis of amorphous chromium hydroxide and chromium oxide green pigment using hydrothermal reduction method".Dyes and Pigments .FEB(2015):487-495.
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