Valorization of Oued Sebou Natural Sediments (Fez-Morocco Area) as Adsorbent of Methylene Blue Dye: Kinetic and Thermodynamic Study

Abdelaziz Dra; Karim Tanji; Abdellah Arrahli; El Mustafa Iboustaten; Abdelali El Gaidoumi; Achaimae Kherchafi; Aziz Chaouni Benabdallah; Abdelhak Kherbeche

doi:10.1155/2020/2187129

The Scientific World Journal (Jan 2020)

Valorization of Oued Sebou Natural Sediments (Fez-Morocco Area) as Adsorbent of Methylene Blue Dye: Kinetic and Thermodynamic Study

Abdelaziz Dra,
Karim Tanji,
Abdellah Arrahli,
El Mustafa Iboustaten,
Abdelali El Gaidoumi,
Achaimae Kherchafi,
Aziz Chaouni Benabdallah,
Abdelhak Kherbeche

Affiliations

Abdelaziz Dra: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco
Karim Tanji: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco
Abdellah Arrahli: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco
El Mustafa Iboustaten: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco
Abdelali El Gaidoumi: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco
Achaimae Kherchafi: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco
Aziz Chaouni Benabdallah: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco
Abdelhak Kherbeche: Laboratory of Catalysis, Materials and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University of Fez, 30000 Fez, Morocco

DOI: https://doi.org/10.1155/2020/2187129
Journal volume & issue: Vol. 2020

Abstract

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The objective of this study is to evaluate the efficiency of methylene blue removal using Oued Sebou sediments as an adsorbent. The presence of carboxyl functional group demonstrated by infrared (IR) analysis of the sediment favorized the methylene blue (MB) adsorption. Sediment collected from Oued Sebou could remove the most MB molecules at pH 8. The Freundlich model described suitably the adsorption process. The experimental measured enthalpy (ΔH) and entropy (ΔS°) are 118.1 kJ mol−1 and 395.2 J mol−1 K−1, respectively, indicating that the reaction was endothermic with an increase of randomness at the solid/liquid interface during the adsorption. The kinetics of MB adsorption by sediment were adequately fitted to the pseudo-second-order model. Experimental results showed that the adsorption capacity of the methylene blue dye depends on the solution pH, the initial dye concentration, the adsorbent mass, the sediment particle diameter, and the temperature of the reaction medium. The removal efficiency of the MB molecules reaches 100% after 60 minutes under the optimum conditions.

Published in The Scientific World Journal

ISSN: 2356-6140 (Print); 1537-744X (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Technology; Medicine; Science
Website: https://onlinelibrary.wiley.com/journal/8086

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