期刊
TENSIDE SURFACTANTS DETERGENTS
卷 54, 期 5, 页码 378-384出版社
CARL HANSER VERLAG
DOI: 10.3139/113.110519
关键词
Natural surfactants; pyrene; polycyclic aromatic hydrogencarbons (PAH); sodium dodecylbenzenesulfonate (SDBS); micellar solubilization; salt effect
资金
- CSIR-UGC, India
Solubilisation of pyrene (PAHs) in aqueous micellar solutions of natural surfactant saponin and conventional surfactant sodium dodecylbenzene sulfonate (SDBS) has been examined by UV-Vis and steady state fluorescence spectrometry at 30 degrees C. The effect of addition of common salt NaCI on the l(1)/l(3) of fluorescence has also been determined. The experiment concludes that the pyrene molecules were incorporated in the palisade layers of both micelles because of their hydrophobic character. The interaction of pyrene with a neutral saponin micelle resulted in a red shift of UV absorption spectra, while the negative headed surfactant SDBS showed no such phenomena. The resulting thermodynamic parameters proved the better efficiency of the bio-surfactant saponin for the solubilization of pyrene with respect to that of the conventional surfactant SDBS. With increasing ionic strength (on addition of NaCI) the solubilization of pyrene was found to be better and effective in both the surfactant mediums.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据