IEC 134 |
| Bianca N. Will, Bettina Schrick, Jennifer L. Blough, Abrahm J. Vogel, and Thomas E. Mallouk. Department of Chemistry, The Pennsylvania State University, 152 Davey Laboratory, University Park, PA 16802 |
| Anionic, hydrophilic carbon or polymer, poly(acrylic acid) (PAA), supported bimetallic iron nanoparticles are effective in the remediation of chlorinated hydrocarbon contaminants, such as trichloroethylene (TCE). The addition of a metal catalyst, such as palladium, increased the TCE hydrodehalogenation rate to substantially above those of iron filings or iron nanoparticles. The particle mobility through soil was examined using columns packed with a range of model soils from different regions of the USDA soil textural triangle. Both carbon and polymer supports enhance particle mobility in soils and permanently suspend the particles in water. Column breakthrough tests are currently underway to quantify strong adsorption sites in soil samples, and fluorescent tags are being used to aid in the identification and characterization of these sites. Corrosion data from simulated groundwater experiments give estimates of the effective nanoparticle lifetimes. |
|
Nanotechnology and the Environment
5:00 PM-7:00 PM, Tuesday, March 25, 2003 Convention Center -- Hall G, Poster
Sci-Mix
Division of Industrial and Engineering Chemistry |