title: Removal of phenol from aqueous solutions by adsorption onto activated carbon prepared from biomass material.
abstract: Activated carbon derived from rattan sawdust (ACR) was evaluated for its ability to remove phenol from an aqueous solution in a batch process. Equilibrium studies were conducted in the range of 25-200mg/L initial phenol concentrations, 3-10 solution pH and at temperature of 30 degrees C. The experimental data were analyzed by the Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models. Equilibrium data fitted well to the Langmuir model with a maximum adsorption capacity of 149.25mg/g. The dimensionless separation factor RL revealed the favorable nature of the isotherm of the phenol-activated carbon system. The pseudo-second-order kinetic model best described the adsorption process. The results proved that the prepared activated carbon was an effective adsorbent for removal of phenol from aqueous solution.
authors.affiliation: School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia. chbassim@eng.usm.my
authors.forename: B H
authors.initials: BH
authors.lastname: Hameed
authors.forename: A A
authors.initials: AA
authors.lastname: Rahman
mesh_terms: D000327:Adsorption; D018533:Biomass; D002244:Carbon / Q000737:chemistry*; D004058:Diffusion; D004391:Dust; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D010636:Phenols / Q000302:isolation & purification*; D012996:Solutions; D013816:Thermodynamics; D014867:Water; D014934:Wood
chemical_list: D004391:Dust; D010636:Phenols; D012996:Solutions; D014867:Water; D002244:Carbon