Synthesis and Evaluation of Activated Carbon From Brown Algae for Enhanced Methyl-orang Dye Reduction
Year: 2024
Type: article
Abstract: 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.
Authors: MEDJAHDI MALIKA, MAHIDA BADRA, BOUSSALAH MOHAMED ETTAHAR, DRA RAFIK, MECHAB BELAЇD, RAMDANI NADIA, KACHMIR FERIEL
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6911984898