Towards a deeper understanding of the adsorption of methyl orange on a commercial activated carbon: Study of impact factors, isotherm and mechanism
This study investigates the use of commercially available activated carbon for the removal of methyl orange from aqueous solutions. The main characteristics of the activated carbon are as follows: BET specific surface area: 641 m²/g; Pore volume: 0.28 cm³ /g; Microporous nature: More than 70 % of the total pore volume are micropores. A systematic approach was adopted to analyze how factors such as contact time, initial pH of the solution, and temperature influence carbon adsorption capacity. A maximum removal capacity value of 100 mg/g with an elimination rate exceeding 98 %. The adsorption behavior of methyl orange was modeled with the statistical physical modeling of the adsorption process using the single trainer model, which provided a better understanding of the adsorption mechanism of methyl orange on activated carbon. This suggests that activated carbon can be an effective adsorbent for the removal of colored compounds from water. The experimental isothermal results encourage the use of this material in the treatment of industrial tannery effluents.
Authors
- Younes Dehmani (ORCID: https://orcid.org/0000-0002-1274-2728)
- Éder C. Lima (ORCID: https://orcid.org/0000-0002-8734-1208)
- Noureddine El Messaoudi (ORCID: https://orcid.org/0000-0003-2762-1395)
- Jordana Georgin (ORCID: https://orcid.org/0000-0003-1692-565X)
- Taibi Lamhasni (ORCID: https://orcid.org/0009-0006-2345-2343)
- Dison S.P. Franco (ORCID: https://orcid.org/0000-0003-3672-998X)
- Bouchra Ba Mohammed
- Abouarnadasse Sadik
- Redouane Mghaiouini (ORCID: https://orcid.org/0000-0002-4786-5218)
- Rachid Kacimi
Institutions
- Centre National de la Recherche Scientifique (FR)
- Universidade Federal do Rio Grande do Sul (BR)
- Aix-Marseille Université (FR)
- Université Ibn-Tofail (MA)
- Université de Poitiers (FR)
- Institut de Chimie des Milieux et des Matériaux de Poitiers (FR)
- Université Ibn Zohr (MA)
- Interfaces, Confinement, Matériaux et Nanostructures (FR)
- Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (FR)
- University of the Coast (CO)
- Université Moulay Ismail de Meknes (MA)
- Institut National des Sciences de l'Archéologie et du Patrimoine (MA)
- Instituto Superior da Maia (PT)
Publication Details
- Journal
- Environmental Surfaces and Interfaces
- Published
- 2025-02-26
- DOI
- https://doi.org/10.1016/j.esi.2025.02.002
- Citations
- 14
- Primary Topic
- Adsorption and biosorption for pollutant removal
- Type
- article
- Field-Weighted Citation Impact
- 11.44