Artículos de revistas
The role of viscosity in the fluorescence behavior of the diesel/biodiesel blends
Fecha
2014-03Registro en:
Renewable Energy,Amsterdam : Elsevier,v. 63, p. 388-391, Mar. 2014
0960-1481
10.1016/j.renene.2013.09.041
Autor
Caires, Anderson R. L.
Scherer, Marisa D.
Souza, José E.
Oliveira, Samuel L.
M'Peko, Jean Claude
Institución
Resumen
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.