Solubilization of reactive dyes by mixed micellar system: Synergistic effect of nonionic surfactant on solubilizing power of cationic surfactant

Sadia Younis; Muhammad Usman; ul Haq Atta ul Haq; Nadia Akram; Muhammad Saeed; Saleem Raza; Muhammad Siddiq; Fiza Bukhtawar

doi:10.1016/j.cplett.2019.136890

Solubilization of reactive dyes by mixed micellar system: Synergistic effect of nonionic surfactant on solubilizing power of cationic surfactant

Sadia Younis, Muhammad Usman^*, ul Haq Atta ul Haq, Nadia Akram, Muhammad Saeed, Saleem Raza, Muhammad Siddiq, Fiza Bukhtawar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

In this manuscript solubilization of reactive dyes i.e. Reactive red 195 and reactive blue 221, by simple and mixed micellar solution, is being reported using UV/visible spectroscopy and electrical conductivity. UV/visible spectroscopy has been used to have quantitative measurement of degree of solubilization in term of partition coefficient (K_x) and Gibbs energy of partition (ΔG_p) while electrical conductivity has been employed to detect critical micelle concentration of surfactants and, accordingly, to calculate thermodynamic parameters. It has been concluded that solubilization is exothermic, spontaneous and enthalpy driven process. The partitioning and binding of RB-195 has been found to be more favorable and spontaneous than that of RB-221. The results clearly indicate that the inclusion of TX-100 in micellar media of CTAB has significantly enhanced its solubilizing power.

Original language	English
Article number	136890
Journal	Chemical Physics Letters
Volume	738
DOIs	https://doi.org/10.1016/j.cplett.2019.136890
State	Published - Jan 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Binding
Conductivity
Dyes
Mixed micellization
Solubilization
Spectroscopy
Surfactants

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2019.136890

Cite this

@article{6779145c41c147ffb7c5effc60169e7f,

title = "Solubilization of reactive dyes by mixed micellar system: Synergistic effect of nonionic surfactant on solubilizing power of cationic surfactant",

abstract = "In this manuscript solubilization of reactive dyes i.e. Reactive red 195 and reactive blue 221, by simple and mixed micellar solution, is being reported using UV/visible spectroscopy and electrical conductivity. UV/visible spectroscopy has been used to have quantitative measurement of degree of solubilization in term of partition coefficient (Kx) and Gibbs energy of partition (ΔGp) while electrical conductivity has been employed to detect critical micelle concentration of surfactants and, accordingly, to calculate thermodynamic parameters. It has been concluded that solubilization is exothermic, spontaneous and enthalpy driven process. The partitioning and binding of RB-195 has been found to be more favorable and spontaneous than that of RB-221. The results clearly indicate that the inclusion of TX-100 in micellar media of CTAB has significantly enhanced its solubilizing power.",

keywords = "Binding, Conductivity, Dyes, Mixed micellization, Solubilization, Spectroscopy, Surfactants",

author = "Sadia Younis and Muhammad Usman and \{Atta ul Haq\}, \{ul Haq\} and Nadia Akram and Muhammad Saeed and Saleem Raza and Muhammad Siddiq and Fiza Bukhtawar",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = jan,

doi = "10.1016/j.cplett.2019.136890",

language = "English",

volume = "738",

journal = "Chemical Physics Letters",

issn = "0009-2614",

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TY - JOUR

T1 - Solubilization of reactive dyes by mixed micellar system

T2 - Synergistic effect of nonionic surfactant on solubilizing power of cationic surfactant

AU - Younis, Sadia

AU - Usman, Muhammad

AU - Atta ul Haq, ul Haq

AU - Akram, Nadia

AU - Saeed, Muhammad

AU - Raza, Saleem

AU - Siddiq, Muhammad

AU - Bukhtawar, Fiza

PY - 2020/1

Y1 - 2020/1

N2 - In this manuscript solubilization of reactive dyes i.e. Reactive red 195 and reactive blue 221, by simple and mixed micellar solution, is being reported using UV/visible spectroscopy and electrical conductivity. UV/visible spectroscopy has been used to have quantitative measurement of degree of solubilization in term of partition coefficient (Kx) and Gibbs energy of partition (ΔGp) while electrical conductivity has been employed to detect critical micelle concentration of surfactants and, accordingly, to calculate thermodynamic parameters. It has been concluded that solubilization is exothermic, spontaneous and enthalpy driven process. The partitioning and binding of RB-195 has been found to be more favorable and spontaneous than that of RB-221. The results clearly indicate that the inclusion of TX-100 in micellar media of CTAB has significantly enhanced its solubilizing power.

AB - In this manuscript solubilization of reactive dyes i.e. Reactive red 195 and reactive blue 221, by simple and mixed micellar solution, is being reported using UV/visible spectroscopy and electrical conductivity. UV/visible spectroscopy has been used to have quantitative measurement of degree of solubilization in term of partition coefficient (Kx) and Gibbs energy of partition (ΔGp) while electrical conductivity has been employed to detect critical micelle concentration of surfactants and, accordingly, to calculate thermodynamic parameters. It has been concluded that solubilization is exothermic, spontaneous and enthalpy driven process. The partitioning and binding of RB-195 has been found to be more favorable and spontaneous than that of RB-221. The results clearly indicate that the inclusion of TX-100 in micellar media of CTAB has significantly enhanced its solubilizing power.

KW - Binding

KW - Conductivity

KW - Dyes

KW - Mixed micellization

KW - Solubilization

KW - Spectroscopy

KW - Surfactants

UR - https://www.scopus.com/pages/publications/85073989346

U2 - 10.1016/j.cplett.2019.136890

DO - 10.1016/j.cplett.2019.136890

M3 - Article

AN - SCOPUS:85073989346

SN - 0009-2614

VL - 738

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 136890

ER -

Solubilization of reactive dyes by mixed micellar system: Synergistic effect of nonionic surfactant on solubilizing power of cationic surfactant

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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