Home|Journals|Articles by Year|Audio Abstracts RSS - TOC

SRP. 2020; 11(3): 495-502

Adsorption, Thermodynamic and DFT Studies of Removal RS Dye on the Iraqi’s Clay from Aqueous Solutions

Ennas Abdul Hussein, Ihsan Mahdi Shaheed, Raghad Saad Hatam, Mustafa M. Kadhim, Dhuha Talib Al-Kadhum, Elaf Abd AL-kareem.


The removal of dye (RS) anionic (Benzene sulfonic acid, 4-hydroxy-3-((2-hydroxy-1-naphthalenyl)) azo monosodium salt) on flint clay in aqueous solution was investigated by using a system of the batch for different concentrations from the dye. The temperature, pH, contact time, adsorbent dose, was studied beneath the batch adsorption method. Data adsorption equilibrium appropriate with isotherm Langmuir and Freiundlich, when the correlation coefficient utilized to clarify the better model for the fitting isotherm. The thermodynamic constants like ∆Hº, ∆Sº, and ∆Gº. Thermodynamic analyses specified for the sorption of the dyes on to Alhusaenat clay (Baghdad Governorate in Iraq) was spontaneous as well as endothermic. Density Functional Theory (DFT) was studied the dye structure used Gaussian 09 and predicted the active site in a molecule by total electron density (TED) and electrostatic surface potential (ESP).

Key words: Adsorption, Dye RS, DFT, Langmuir model, Thermodynamic

Full-text options

Share this Article

Online Article Submission
• ejmanager.com

ejPort - eJManager.com
Review(er)s Central
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.