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Adsorption/desorption of cationic dye on surfactant modified mesoporous carbon coated monolith: equilibrium, kinetic and thermodynamic studies


Citation

Malekbalaa, Mohamad Rasool and Ali Khan, Moonis and Hosseinia, Soraya and Abdullah, Luqman Chuah and Choong, Thomas Shean Yaw (2015) Adsorption/desorption of cationic dye on surfactant modified mesoporous carbon coated monolith: equilibrium, kinetic and thermodynamic studies. Journal of Industrial and Engineering Chemistry, 21. pp. 369-377. ISSN 1226-086X; ESSN: 1876-794X

Abstract

Surfactant modified carbon coated monolith was used as an adsorbent for methylene blue (MB) adsorption. Effects of pH, salt, contact time, initial dye concentrations and temperature on dye adsorption were studied. Higher solution pH favoured MB adsorption. Furthermore, kinetics study showed that the adsorption could be better represented by the pseudo-second-order model. Linear and non-linear isotherm studies revealed better fitting of Langmuir model to adsorption data with maximum monolayer adsorption capacity 388 mg/g. The adsorption was found to be spontaneous and endothermic. Desorption studies indicate that 0.1 N HCl exhibits higher elution efficiency (82.1%) with appreciable quantitative MB recovery.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Institute of Tropical Forestry and Forest Products
DOI Number: https://doi.org/10.1016/j.jiec.2014.02.047
Publisher: Elsevier
Keywords: Mesoporous carbon coated monolith; Surfactant (F-127); Methylene blue; Desorption; Regeneration
Depositing User: Mohd Hafiz Che Mahasan
Date Deposited: 08 Aug 2016 05:11
Last Modified: 08 Aug 2016 05:11
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jiec.2014.02.047
URI: http://psasir.upm.edu.my/id/eprint/43669
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