Adsorption of Thymol onto Natural Clays of Morocco: Kinetic and Isotherm Studies

Hamid Ziyat; Mohammed Naciri Bennani; Hassan Hajjaj; Omar Qabaqous; Said Arhzaf; Soumiya Mekdad; Safae Allaoui

doi:10.1155/2020/4926809

Journal of Chemistry (Jan 2020)

Adsorption of Thymol onto Natural Clays of Morocco: Kinetic and Isotherm Studies

Hamid Ziyat,
Mohammed Naciri Bennani,
Hassan Hajjaj,
Omar Qabaqous,
Said Arhzaf,
Soumiya Mekdad,
Safae Allaoui

Affiliations

Hamid Ziyat: Laboratory of Chemistry-Biology Applied to the Environment, Research Team “Applied Materials and Catalyses” Chemistry Department, Faculty of Sciences, Moulay-Ismail University, BP. 11201 Zitoune, Meknes, Morocco
Mohammed Naciri Bennani: Laboratory of Chemistry-Biology Applied to the Environment, Research Team “Applied Materials and Catalyses” Chemistry Department, Faculty of Sciences, Moulay-Ismail University, BP. 11201 Zitoune, Meknes, Morocco
Hassan Hajjaj: Laboratory of Plant Biotechnology and Molecular Biology, Applied Mycology Team, Faculty of Sciences, Moulay-Ismail University, BP. 11201 Zitoune, Meknes, Morocco
Omar Qabaqous: Laboratory of Chemistry-Biology Applied to the Environment, Research Team “Applied Materials and Catalyses” Chemistry Department, Faculty of Sciences, Moulay-Ismail University, BP. 11201 Zitoune, Meknes, Morocco
Said Arhzaf: Laboratory of Chemistry-Biology Applied to the Environment, Research Team “Applied Materials and Catalyses” Chemistry Department, Faculty of Sciences, Moulay-Ismail University, BP. 11201 Zitoune, Meknes, Morocco
Soumiya Mekdad: Laboratory of Chemistry-Biology Applied to the Environment, Research Team “Applied Materials and Catalyses” Chemistry Department, Faculty of Sciences, Moulay-Ismail University, BP. 11201 Zitoune, Meknes, Morocco
Safae Allaoui: Laboratory of Chemistry-Biology Applied to the Environment, Research Team “Applied Materials and Catalyses” Chemistry Department, Faculty of Sciences, Moulay-Ismail University, BP. 11201 Zitoune, Meknes, Morocco

DOI: https://doi.org/10.1155/2020/4926809
Journal volume & issue: Vol. 2020

Abstract

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The present work aims to study the affinity of a component of the thyme essential oil “thymol” to natural Moroccan clay “Rhassoul” using the adsorption technique. The physicochemical characterizations of the purified and modified clay were carried out by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), DTA/TGA, and SEM-EDX. Thymol adsorption tests on the purified Rhassoul (Rh-P) and the modified one by CTAB (Rh-CTAB) were followed by UV-visible spectroscopy. They show that the adsorption isotherms can be described by the Freundlich model and that the kinetics of adsorption is in accordance with the pseudo-second-order model for the two clays. Adsorption capacities obtained were of the order of 6 mg/g for the purified Rhassoul and 16 mg/g for the modified Rhassoul by cetyltrimethylammonium bromide (CTAB). These values show that the modified Rhassoul has a better adsorption capacity compared to the purified Rhassoul.

Published in Journal of Chemistry

ISSN: 2090-9063 (Print); 2090-9071 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Science: Chemistry
Website: https://onlinelibrary.wiley.com/journal/2962

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