1. MEDJAHDI MALIKA - APELEC Laboratory, University of Djillali Liabes, Sidi Bel Abbes, Algeria.
2. MAHIDA BADRA - LaRTFM Laboratory, USTO University, Oran, 31000, Algeria.
3. BOUSSALAH MOHAMED ETTAHAR - GCE Laboratory, Djillali Liabes University, Sidi Bel Abbes, 22000, Algeria.
4. DRA RAFIK -EGP Department, University of Djillali Liabes, Sidi Bel Abbes, Algeria.
5. MECHAB BELAЇD - LMPM, Department of Mechanical Engineering, University of Sidi Bel Abbes, BP 89, Cité Ben M’hidi, Sidi
Bel Abbes 22000, Algeria.
7. RAMDANI NADIA - APELEC Laboratory, University of Djillali Liabes, Sidi Bel Abbes, Algeria.
8. KACHMIR FERIEL - EGP Department, University of Djillali Liabes, Sidi Bel Abbes, Algeria.
This study explores the preparation, characterization, and adsorption capabilities of activated carbon derived from brown algae for water pollutant removal. The preparation involved chemical activation with phosphoric acid at 170°C for 2 hours, followed by physical activation at 600°C for 2 hours. Characterization revealed functional groups (e.g., OH, CH₂, carboxylic) aiding adsorption, with a density of 1.5 g/cm³ and low ash content indicating high purity. Adsorption capacities for iodine and methylene blue were 950 mg/g and 245 mg/g, respectively. The activated carbon efficiently adsorbed methyl orange, with optimal conditions of pH 3, 1 g adsorbent dosage, and 40-minute contact time, achieving a maximum adsorption capacity (Qm) of 9.3 mg/g. Adsorption modeling with Langmuir and Freundlich isotherms validated its suitability for water treatment. The study highlights the potential of renewable brown algae-derived activated carbon as an effective, sustainable solution for removing organic pollutants.
Activated Carbon, Brown Algae, Adsorption Isotherm, Water Treatment, Sustainable Materials.