Different behaviours in the solubilization of polycyclic aromatic hydrocarbons in water induced by mixed surfactant solutions
作者： Pablo S. Sales , Rita H. de Rossi , Mariana A. Fernández
DOI: 10.1016/J.CHEMOSPHERE.2011.04.073
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摘要: Abstract Water solubility of polycyclic aromatic hydrocarbons (PAHs), viz, naphthalene and phenanthrene, in micellar solutions at 25 °C was investigated, using two series different binary mixtures anionic nonionic surfactants. Tween 80 Brij-35 were used as surfactants whereas fatty acids or amphiphilic cyclodextrins (Mod-β-CD) synthesized our laboratory ones. Solubilization capacity has been quantified terms the molar solubilization ratio micelle–water partition coefficient, UV–visible spectrophotometry. Anionic exhibited less than nonionics. The between Mod-β-CD did not show synergism to increase PAHs. On other hand, formed by all mole fractions studied produced higher enhancements individual critical concentration 80/sodium laurate determined surface tension measurements spectrofluorimetry pyrene probe. system is characterized a negative interaction parameter ( β ) indicating attractive interactions both range compositions studied.
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