The role of viscosity in the fluorescence behavior of the diesel/biodiesel blends

Anderson R.L. Caires, Marisa D. Scherer, José E. De Souza, Samuel L. Oliveira and Jean-Claude M'Peko

Renewable Energy, 2014, vol. 63, issue C, 388-391

Abstract: Recently, the potentiality of fluorescence spectroscopy to be used in the quantification of biodiesel content in diesel/biodiesel blends (DBB) was demonstrated. However, the source of the fluorescence dependence of the DBB with biodiesel concentration remains unanswered. In the present paper, a close analysis of the optical properties of the DBB was performed over a wide composition range. The findings suggest that the alterations in the fluorescence intensity can be accounted for only after taking into account changes in viscosity as well as absorbance, in a model where the fluorophores were considered as molecular rotors.

Keywords: Diesel; Biodiesel; Blend; Fluorescence; Viscosity (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:63:y:2014:i:c:p:388-391

DOI: 10.1016/j.renene.2013.09.041

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