article · Environmental Surfaces and Interfaces
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.
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DOI: 10.1016/j.esi.2025.02.002
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