Kinetic Study of Sodium Dodecylsulfate Degradation by  Solar Heterogeneous Photocatalysis Based on Tungsten Oxide

Djedjess Essoh Jules-César Meledje; Yao Augustin Yobouet; Ange Victoire Mireille Loua; Aimé Serge Ello; Séverin N’goran Eroi; Albert Trokourey

doi:10.9734/irjpac/2024/v25i2850

Research Article Open access CC BY 4.0

Kinetic Study of Sodium Dodecylsulfate Degradation by Solar Heterogeneous Photocatalysis Based on Tungsten Oxide

Djedjess Essoh Jules-César Meledje, Yao Augustin Yobouet, Ange Victoire Mireille Loua, Aimé Serge Ello, Séverin N’goran Eroi, Albert Trokourey

International Research Journal of Pure and Applied Chemistry · pp. 48–58 · Published 29 Mar 2024

10.9734/irjpac/2024/v25i2850

Abstract

Sodium Dodecyl Sulfate or SDS is a chemical compound widely used in detergent and cosmetic formulations. This work describes the application of solar heterogeneous photocatalysis based on tungsten oxide (WO3) to the kinetic study of the degradation of sodium dodecylsulfate. The experiments were performed at room temperature to study the effect of the initial catalyst mass. The results showed that a small amount of tungsten oxide is sufficient to degrade sodium dodecyl sulfate. The initial concentrations of SDS varied between 5 and 15 mg.L-1. According to the results, more than 87% reduction is obtained after 120 min of solar irradiation of the SDS solution for a WO3/SDS mass ratio of 1/5. The detailed kinetic analysis of the photodegradation of sodium dodecylsulfate showed that the disappearance of the anionic surfactant follows a pseudo-prime model. According to the Langmuir-Hinshelwood model, the kinetics constant calculated from the linear form of this model are : k = 0.042 mg.L.min-1 and K = 0.060 L.mg-1.

Sodium dodecyl sulphate heterogeneous photocatalysis tungsten oxide solar radiation

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Djedjess Essoh Jules-César Meledje, Yao Augustin Yobouet, Ange Victoire Mireille Loua, Aimé Serge Ello, Séverin N’goran Eroi, Albert Trokourey (2024). Kinetic Study of Sodium Dodecylsulfate Degradation by Solar Heterogeneous Photocatalysis Based on Tungsten Oxide. International Research Journal of Pure and Applied Chemistry , 48–58. https://doi.org/10.9734/irjpac/2024/v25i2850

Affiliations

Djedjess Essoh Jules-César Meledje — Laboratory of Physical, Fundamental and Applied Sciences, Ecole Normale Supérieure (Abidjan), 08 BP 10 Abidjan 08, Côte d'Ivoire.
Yao Augustin Yobouet — Laboratory of Physical, Fundamental and Applied Sciences, Ecole Normale Supérieure (Abidjan), 08 BP 10 Abidjan 08, Côte d'Ivoire.
Ange Victoire Mireille Loua — Laboratory of Constitution and Reaction of Matter, UFR Sciences of Matter Structures and Technology, Félix Houphouët-Boigny University, Abidjan, BP V34, Côte d'Ivoire.
Aimé Serge Ello — Laboratory of Constitution and Reaction of Matter, UFR Sciences of Matter Structures and Technology, Félix Houphouët-Boigny University, Abidjan, BP V34, Côte d'Ivoire.
Séverin N’goran Eroi — Laboratory of Constitution and Reaction of Matter, UFR Sciences of Matter Structures and Technology, Félix Houphouët-Boigny University, Abidjan, BP V34, Côte d'Ivoire.
Albert Trokourey — Laboratory of Constitution and Reaction of Matter, UFR Sciences of Matter Structures and Technology, Félix Houphouët-Boigny University, Abidjan, BP V34, Côte d'Ivoire.

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