alexa Study of the Adsorption of Bright Green by a Natural Cl
ISSN: 2169-0022

Journal of Material Sciences & Engineering
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Research Article

Study of the Adsorption of Bright Green by a Natural Clay and Modified

Ltifi I*, Ayari F, Hassen Chehimi DB and Ayadi MT

Department of Chemistry, Faculty of Science of Bizerte, University of Carthage, Tunisia

*Corresponding Author:
Ltifi I
Department of Chemistry, Faculty of Science of Bizerte
University of Carthage 7021, Tunisia
Tel: 21672590717
E-mail: [email protected]

Received Date: January 04, 2017; Accepted Date: January 18, 2017; Published Date: January 28, 2017

Citation: Ltifi I, Ayari F, Hassen Chehimi DB, Ayadi MT (2017) Study of the Adsorption of Bright Green by a Natural Clay and Modified. J Material Sci Eng 6: 317. doi: 10.4172/2169-0022.1000317

Copyright: © 2017 Ltifi I, 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

The adsorption of Bright Green (BG), a cationic dye, was studied by clay treatment experiments by modification with an aqueous solution of a cationic surfactant. Hexadecyltrimethylammonium bromide (HDTMA) and Cetylpyridinium chloride (CPC) were used for the modification of the clay. Clay modified HDTMA showed the greatest adsorption capacity compared to the other adsorbents studied.The adsorption of HDTMA on BG depended on the adsorbent dose, the pH of the solution, the contact time and the initial dye concentration studied. The adsorption data to correspond to the HDTMA experiments have been better described by the Langmuir isotherm model. The isothermal adsorption capacity of BG on HDTMA modified clay was found to be 45.5 mg/g (for an initial BG concentration of 50 mg/L), which is significantly higher than that of other adsorbents. The kinetics of adsorption of BG on clay modified by HDTMA has been described more precisely by the pseudo-second order kinetics model. The adsorbent was characterized by analysis of the Brunauer-Emmett-Teller surface (BET), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The BG adsorption mechanism on the surfactant-modified clay may comprise a hydrophobic interaction or van der Waals interaction or a combination of the two.

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