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Issue
Korean Journal of Chemical Engineering,
Vol.32, No.6, 1129-1136, 2015
Adsorption behavior of phenanthrene onto coal-based activated carbon prepared by microwave activation
Xiao X, Tian F, Yan Y, Wu Z, Cravotto G
Coal-based activated carbon (CAC) was prepared from coal produced in Xinjiang of China by microwave activation. CAC was characterized and used as an adsorbent for phenanthrene adsorption. The effects of temperature, adsorption time, CAC amount, initial concentration and pH value of solution on phenanthrene adsorption were studied. The adsorption rate of phenanthrene onto CAC was obtained nearly 100% with initial concentration of 100 mg/L and CAC dosage of 0.3 g at 25 oC. Phenanthrene adsorption was well described with the Langmuir isotherm. The pseudosecond-order model was found to more effectively explain the adsorption kinetics of phenanthrene. The lower temperature was favorable to the adsorption rate and equilibrium adsorption capacity of phenanthrene onto CAC. The thermodynamic parameters ΔHθ, ΔSθ and ΔGθ computed for phenanthrene adsorption onto CAC demonstrate the process was spontaneous, radiative, and entropically driven. Thus, CAC prepared by microwave activation could be effective for removing phenanthrene.
Keywords: Coal-based Activated Carbon; Microwave Activation; Phenanthrene; Adsorption; Kinetics and Thermodynamics
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[Cited By]
  1. Yao J, Kong Q, Zhu H, Shen D, Zhang Z, Korean Journal of Chemical Engineering, 33(2), 553, 2016
  2. An FQ, Zhang D, Yue XX, Ou GL, Gao JF, Hu TP, Korean Journal of Chemical Engineering, 33(2), 576, 2016
  3. Cha JS, Park SH, Jung SC, Ryu C, Jeon JK, Shin MC, Park YK, Journal of Industrial and Engineering Chemistry, 40, 1, 2016
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