Comment on 'Modeling Maximum Adsorption Capacities of Soot and Soot-like Materials for PAHs and PCBs'

摘要

Van Noort et al.(1)derive maximum surface area normalized adsorption capacities(Q_(max)*)for the sorption of PAHs and PCBs to soot and carbon materials.They use the Langmuir isotherm to extrapolate Qmax* at the solubility limit from solid-water distribution coefficients(K_S)measured in the picogram per liter to nanogram per liter range(2)with estimated Langmuir affinities for adsorption(b)at a carbonaceous surface(3).The purpose of this comment is to provide a comparison with estimated surface area normalized mono-layer adsorption capacities(Q_(mono)*)and with empirical sorption data from the literature.