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Surface Energy of C60 and the Interfacial Interactions in Aqueous Systems
Citation:
MA, X., B. Wigington, AND D. BOUCHARD. Surface Energy of C60 and the Interfacial Interactions in Aqueous Systems . Presented at 239th ACS National Meeting & Exposition, San Francisco, CA, March 21 - 25, 2010.
Impact/Purpose:
Scientific meeting presentation.
Description:
The surface free energy components of C60 powder in the form of compressed pellets were determined by sessile drop contact angle measurements. Based on van Oss-Chaudhury-Good model to Young-Dupre equation, the surface energy of C60 and the contributions of the apolar (Lifshitz-van der Waals) and polar (acid-base) components to surface free energy were assessed. From these components, the surface free energies of inter-particle interaction between C60 and the interaction between C60 and quartz surfaces in aqueous systems were derived. This study aims to elucidate the mechanism of C60 aggregation, the nature of C60-water interaction, and the adsorption of C60 onto surfaces such as soil in aqueous systems.
URLs/Downloads:
MA 09 163A ACS SPRING 2010_POSTER.PDF (PDF, NA pp, 174 KB, about PDF)MA 09 163 ACS SPRING 2010.PDF (PDF, NA pp, 10 KB, about PDF)