Polyaromatic hydrocarbons (PAHs) sorption behavior unaffected by the presence of multi-walled carbon nanotubes (MWNTs) in a natural soil system
作者： Shibin Li , Todd A. Anderson , Micah J. Green , Jonathan D. Maul , Jaclyn E. Cañas-Carrell
DOI: 10.1039/C3EM00099K
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摘要: The batch equilibrium approach was used to examine the influence of multi-walled carbon nanotubes (MWNTs) on sorption behaviors polyaromatic hydrocarbons (PAHs) in soil. To knowledge authors, this is first study PAH MWNTs real natural soil systems. behavior three PAHs (naphthalene, fluorene, and phenanthrene) presence commercially available two soils (a sandy loam a silt loam) Ottawa sand evaluated. Adsorption by orders magnitude higher than that soils. Sorption coefficients (Kd Koc) were unchanged 2 mg g−1 (p > 0.05). A micro-mechanics approach, termed ‘the rule mixtures’ for predicting mixtures based derived from single sorbents. equation, KT = KMα + KN(1 − α) (K, coefficients, Kd or Koc), predicted mixture component mass fractions. Data presented could be fill data gaps related environmental fate
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