Poulose Aby, Cheruvathoor ; Sreeram, Kalarical Janardhanan ; Nair, Balachandran Unni ; Ramasami, Thirumalachari (2007) Doped oxides of cerium as inorganic colorants Coloration Technology, 123 (6). pp. 374-378. ISSN 1472-3581
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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1478-...
Related URL: http://dx.doi.org/10.1111/j.1478-4408.2007.00111.x
Abstract
The colour of inorganic colorants is based on metal ions such as cadmium, lead, chromium or cobalt, the majority of which are unfortunately potentially toxic. Thus, there is in a need to introduce alternative metal or metal oxides, which would be environmentally friendly and economically viable as a replacement for potentially toxic inorganic colorants. Rare earth-based colorants offer an additional opportunity for the development of optically pure colours. In this study, a replacement for potentially toxic colorants has been sought through the use of a rare earth metal ion, cerium. Appropriate doping of cerium oxides with molybdenum and iron gives an orange-red colorant. The conditions ideal for optimal colour have been standardised and the resultant colorant characterised through powder X-ray diffraction techniques, particle size measurement, etc. The colorants exhibit good hiding power and tinting strength.
Item Type: | Article |
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Source: | Copyright of this article belongs to John Wiley and Sons. |
ID Code: | 53354 |
Deposited On: | 10 Aug 2011 09:57 |
Last Modified: | 10 Aug 2011 09:57 |
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