“…4 The highly hydrophobic NPs pose a strong intendancy to interaction with soil/sediment organic matter, especially the ubiquitous dissolved organic matter (DOM), which signicantly inuence the transportation, transformation, and bioavailability of NPs in the environments. [7][8][9][10] By using dialysis equilibrium experiments, Li et al 10 found DOM had high affinity to adsorb NPs. Liao et al 8 investigated the kinetics and thermodynamics of NP sorption to the DOM, and the results indicated that the pseudo rst order model and Freundlich model could better describe the sorption process.…”