Ammonia-modified activated carbon for the adsorption of 2,4-dichlorophenol

作者：Shaarani F W; Hameed B H^*

来源：Chemical Engineering Journal, 2011, 169(1-3): 180-185.

DOI：10.1016/j.cej.2011.03.002

• Ammonia
• Activated carbon
• Oil palm empty fruit bunch
• 2,4-Dichlorophenol
• Adsorption
• Isotherm
• Kinetics

In this study, an oil palm empty fruit bunch-based activated carbon was modified using ammonia aqueous solution. The effect of the chemical modification on the adsorption capacity of modified activated carbon (MAC) for 2,4-dichlorophenol (2,4-DCP) adsorption was investigated. The monolayer adsorption capacity of MAC was 285.71 mg/g at 30 degrees C. Adsorption isotherm fitting revealed that Langmuir model was applicable for the MAC. The adsorption kinetics of 2,4-DCP onto MAC was described by the pseudo-second-order kinetic model. The surface modification of the activated carbon using ammonia was shown to be able to increase its adsorption capacity for 2.4-DCP.

• 出版日期2011-5-1