title: Preparation of activated carbon by microwave heating of langsat (Lansium domesticum) empty fruit bunch waste.
abstract: The feasibility of langsat empty fruit bunch waste for preparation of activated carbon (EFBLAC) by microwave-induced activation was explored. Activation with NaOH at the IR ratio of 1.25, microwave power of 600 W for 6 min produced EFBLAC with a carbon yield of 81.31% and adsorption uptake for MB of 302.48 mg/g. Pore structural analysis, scanning electron microscopy and Fourier transform infrared spectroscopy demonstrated the physical and chemical characteristics of EFBLAC. Equilibrium data were best described by the Langmuir isotherm, with a monolayer adsorption capacity of 402.06 mg/g, and the adsorption kinetics was well fitted to the pseudo-second-order equation. The findings revealed the potential to prepare high quality activated carbon from langsat empty fruit bunch waste by microwave irradiation.
authors.affiliation: School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
authors.forename: K Y
authors.initials: KY
authors.lastname: Foo
authors.forename: B H
authors.initials: BH
authors.lastname: Hameed
mesh_terms: D000327:Adsorption / Q000187:drug effects; D002606:Charcoal / Q000138:chemical synthesis*; D005638:Fruit / Q000737:chemistry* / Q000187:drug effects; D006361:Heating / Q000379:methods*; D007700:Kinetics; D029582:Meliaceae / Q000737:chemistry* / Q000187:drug effects; D008751:Methylene Blue / Q000302:isolation & purification; D008872:Microwaves; D008956:Models, Chemical; D012972:Sodium Hydroxide / Q000494:pharmacology; D013499:Surface Properties / Q000187:drug effects; D013696:Temperature; D013997:Time Factors; D014866:Waste Products / Q000032:analysis*
chemical_list: D014866:Waste Products; D002606:Charcoal; D012972:Sodium Hydroxide; D008751:Methylene Blue