期刊名称：Walailak Journal of Science and Technology (WJST)
印刷版ISSN：2228-835X
出版年度：2014
卷号：13
期号：1
DOI：10.14456/vol12iss2pp
语种：English
出版社：Institute of Research and Development, Walailak University.
摘要：Surface and bulk properties of anionic surfactant sodium dodecyl sulfate (SDS) in both the absence and presence of co-solvent and co-solute and its interaction with Bromocresol Green (BCG) in aqueous media were investigated using surface tensiometry, conductometry and UV-Visible spectroscopy at 303K. The main co-solvent and co-solute used in this work are ethanol and NaCl respectively. Surface tensiometry and conductometry were used to detect the values of critical micelle concentration (CMC). The effect of ethanol and NaCl on the CMC and free energy of micellization () was also observed. To enhance the scope of the present study, the interaction and solubilization behaviour of an amphiphilic organic dye, BCG with SDS in aqueous media was also investigated. Simple as well as differential UV-Visible spectroscopy was used to study the solublization behaviour of dye-surfactant mixed systems. The partition coefficient (Kx) and the free energy of transfer ) of the dye from water to hydrophobic interior of the micelle was calculated. The binding behavior of BCG in surfactant solution is reflected in terms of micelle-water partition coefficient (Kx). Low Kx value shows that BCG is partitioned weakly from polar to non polar environment in the palisade layer of micelle.
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