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Retention of Aqu/C60 Nanoparticles on Quartz Surfaces
Citation:
BOUCHARD, D., X. MA, C. Isaacson, AND J. W. WEAVER. Retention of Aqu/C60 Nanoparticles on Quartz Surfaces. Presented at Pacifichem 2010 Meeting, Honolulu, HI, December 15 - 20, 2010.
Impact/Purpose:
To present research at a scientific conference.
Description:
Studies have shown that C60 fullerene can form stable suspensions of colloidal sized particles in water resulting in C60 aqueous concentrations many orders of magnitude above C60’s aqueous solubility. These studies have raised concern over the mobility and distribution of fullerene nanoparticles in the environment. To further our understanding of the transport of fullerenes in aqueous media we investigated the retention of C60 nanoparticles formed in purely aqueous systems (aqu/C60) on quartz surfaces in both batch and column systems. Batch kinetic studies were designed to quantify aqu/C60 adsorption kinetics on iota quartz surfaces. Aqu/C60 particle transport through columns was simulated using a modified form of the 1-D advective-dispersive transport model with terms for particle attachment and detachment rate, as well as for a limiting particle retention capacity of the collectors.