Study of the Thermodynamic Quantities of Adsorption and Activation of Piroxicam in Copper Corrosion in a Nitric Acid Environment-Reference-Cited by-同舟云学术

Study of the Thermodynamic Quantities of Adsorption and Activation of Piroxicam in Copper Corrosion in a Nitric Acid Environment

Published:2023-09-05 Issue: Volume: Page:267-283
ISSN:2581-9003
Container-title:Earthline Journal of Chemical Sciences
language:en
Short-container-title:EJCS

Author:

Ehouman Ahissan Donatien¹,Kouadio Yao Valery¹,Kalifa Mariko²,Bamba Amara²,Kouakou Adjoumani Rodrigue¹,Bamba Kafoumba¹,Niamien Paulin Marius²,Yao Benjamin³

Affiliation:

1. Laboratoire de Thermodynamique et Physico-Chimie du Milieu, Université NANGUI ABROGOUA, 02 BP 882 Abidjan 02, Côte d’Ivoire

2. Laboratoire de Réaction et Constitution de la Matière, Université Félix Houphouët Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire

3. Centre d’Excellence Africain Pour la Valorisation des Déchets en Produits À Haute Valeur Ajoutée (CEA-VALOPRO), Institut National Polytechnique Félix Houphouët-Boigny (INP-HB), BP 1093, Yamoussoukro, Côte d’Ivoire

Abstract

The objective of this work is to assess the inhibitory efficacy of the piroxicam molecule on copper corrosion in a 1M nitric acid medium using the mass loss technique (gravimetry). The inhibition efficiency, represented as IE (%), increases with higher concentrations and temperatures. Various adsorption isotherm models (Langmuir, El-Awady, Freundlich, and Temkin) were employed to describe the interactions between the molecule and metallic copper. The Dubinin-Radushkevich isotherm, along with the Adejo-Ekwenchi isotherm, was utilized to identify the types of adsorption. Additionally, the thermodynamic adsorption and activation functions were determined and analyzed.

Publisher

Earthline Publishers

Subject

General Medicine

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