Solubilization of reactive blue 19 by the micelles of cationic surfactant Cetyltrimethyl ammonium bromide (CTAB)

被引：25

作者：

Ul Haq, Naveed ^{[1
]}

Usman, Muhammad ^{[1
]}

Mansha, Asim ^{[1
]}

Rashid, Muhammad Abid ^{[2
]}

Munir, Majid ^{[1
]}

Rana, Usman Ali ^{[3
]}

机构：

[1] Govt Coll Univ, Dept Chem, Faisalabad 38000, Pakistan

[2] Univ Agr Faisalabad, Dept Chem & Biochem, Faisalabad, Pakistan

[3] King Saud Univ, Coll Engn, Riyadh 11421, Saudi Arabia

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2014年 / 196卷

关键词：

Dye; Surfactant; Solubilization; Conductivity; Spectroscopy; Micelle; SODIUM DODECYL-SULFATE; BINDING; PYRENE; DYES;

D O I：

10.1016/j.molliq.2014.03.038

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The present study reports the solubilization of a reactive dye, reactive blue 19 by the micelles of a cationic surfactant Cetyltrimethyl ammonium bromide (CTAB). For this purpose, the electrical conductivity measurements were used to calculate the thermodynamic parameters such as free energy (Delta G), enthalpy (Delta H) and entropy (Delta S) of solubilization. In addition, the values of partition coefficient (K-x), free energy of partition (Delta G(p)) and number of dye molecules per micelle (n) were calculated using differential spectroscopic technique. The results from both studies revealed that the solubilization process of reactive blue 19 in the micellar media of CTAB is spontaneous and entropy driven. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：264 / 269

页数：6

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