4th WCSET-2015 at Japan

 

Applied Sciences and Engineering:

Title:            ß-Naphthol in Micellar Media - A Fluorescence Study
Authors:       Shuchi Gupta
Abstract:     Fluorescence study of ß-naphthol has been done in micellar core of certain surfactants used for study are nonionic as well as ionic ones. The fluorescence peak height at 355-360 nm increases on increasing the concentration of nonionic surfactant solution reaching a limiting value. Enhancement in fluorescence intensity of ß-naphthol is very small with all the three anionic surfactants used. On initial addition of CTAB and CDBAC, a small enhancement in the emission intensity was observed which further decreased at higher concentration of these surfactants. While in CPC micellar media, the emission intensity showed a decreasing trend. Environmental studies of the effect of non-aqueous solvent, ethanol, on the fluorescence spectra of the ß- naphthol were also made. The fluorescence studies were supplemented with absorption spectral studies and light-scattering studies. Spectral-parameters, like quantum yield, molar extinction coefficient and Stokes’ shift, were also calculated. All the results were found to be in fair agreement and have been attributed to micellization of the surfactants.

Keywords:    Fluorescence, ß-naphthol, Micelle, Surfactant, Spectral Parameters
Pages:          056-057

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