alexa Spectrophotometric Investigation of the Interactions between Cationic (C.I. Basic Blue 9) and Anionic (C.I. Acid Blue 25) Dyes in Adsorption onto Extracted Cellulose from Posidonia oceanica
ISSN: 2165-8064

Journal of Textile Science & Engineering
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Research Article

Spectrophotometric Investigation of the Interactions between Cationic (C.I. Basic Blue 9) and Anionic (C.I. Acid Blue 25) Dyes in Adsorption onto Extracted Cellulose from Posidonia oceanica

Douissa NB*, Dridi-Dhaouadi S and Mhenni MF

Research Unity of Applied Chemistry and Environment, Department of Chemistry, Faculty of Sciences, University of Monastir, 5019 Tunisia

*Corresponding Author:
Najoua Ben Douissa
Research Unity of Applied Chemistry and Environment
Department of Chemistry, Faculty of Sciences
University of Monastir, 5019 Tunisia
Tel: +21655871209
Fax: +21673500278
E-mail: [email protected]

Received Date: January 13, 2016; Accepted Date: February 15, 2016; Published Date: February 22, 2016

Citation: Douissa NB, Dridi-Dhaouadi S, Mhenni MF (2016) Spectrophotometric Investigation of the Interactions between Cationic (C.I. Basic Blue 9) and Anionic (C.I. Acid Blue 25) Dyes in Adsorption onto Extracted Cellulose from Posidonia oceanica. J Textile Sci Eng 6:240. doi:10.4172/2165-8064.1000240

Copyright: © 2016 Douissa NB, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Extracted cellulose from Posidonia oceanica was used as an adsorbent for removal of a cationic (Basic blue 9, BB) and anionic textile dye (Acid blue 25, AB) from aqueous solution in single dye system. Characterization of the extracted cellulose and extracted cellulose-dye systems were performed using several techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), zeta potential and Boehm acid– base titration method. Adsorption tests showed that the extracted cellulose presented higher adsorption of BB than AB in single dye system, revealing that electrostatic interactions are responsible, in the first instance, for the dye– adsorbent interaction. In single dye systems, the extracted cellulose presented the maximum adsorption capacities of BB and AB at 0.955 and 0.370 mmol.g-1, respectively. Adsorption experiments of AB dye on extracted cellulose saturated by BB dye exhibited the release of the latter dye from the sorbent which lead to dye-dye interaction in aqueous solution due to electrostatic attraction between both species. Interaction of BB and AB dyes were investigated using spectrophotometric analysis and results demonstrated the formation of a molecular complex detected at wavelengths 510 and 705 nm when anionic (AB) and cationic (BB) dye were taken in equimolar proportions. The adsorption isotherm of AB, taking into account the dye-dye interaction was investigated and showed that BB dye was released proportionately by AB equilibrium concentration. It was also observed that AB adsorption is widely enhanced when the formation of the molecular complex is disadvantaged.

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