title: Effect of CO₂ flow rate on the Pinang frond-based activated carbon for methylene blue removal.
abstract: Activated carbons are regularly used the treatment of dye wastewater. They can be produced from various organics materials having high level of carbon content. In this study, a novel Pinang frond activated carbon (PFAC) was produced at various CO₂ flow rates in the range of 150-600 mL/min at activation temperature of 800°C for 3 hours. The optimum PFAC sample is found on CO₂ flow rate of 300 mL/min which gives the highest BET surface area and pore volume of 958 m²/g and 0.5469 mL/g, respectively. This sample shows well-developed pore structure with high fixed carbon content of 79.74%. The removal of methylene blue (MB) by 95.8% for initial MB concentration of 50 mg/L and 72.6% for 500 mg/L is achieved via this sample. The PFAC is thus identified to be a suitable adsorbent for removing MB from aqueous solution.
authors.affiliation: Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia.
authors.forename: S G
authors.initials: SG
authors.lastname: Herawan
authors.forename: M A
authors.initials: MA
authors.lastname: Ahmad
authors.forename: A
authors.initials: A
authors.lastname: Putra
authors.forename: A A
authors.initials: AA
authors.lastname: Yusof
mesh_terms: D000327:Adsorption; D001114:Areca; D002245:Carbon Dioxide / Q000737:chemistry*; D002606:Charcoal / Q000737:chemistry*; D008751:Methylene Blue / Q000032:analysis / Q000737:chemistry*; D013499:Surface Properties; D018508:Water Purification / Q000379:methods
chemical_list: D002245:Carbon Dioxide; D002606:Charcoal; D008751:Methylene Blue
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