2008 Joint Annual Meeting (5-9 Oct. 2008): Characterization of Environmentally Relevant Chemical and Physical Properties of Silver Nano-Particles.
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668-11 Characterization of Environmentally Relevant Chemical and Physical Properties of Silver Nano-Particles.



Tuesday, 7 October 2008
George R. Brown Convention Center, Exhibit Hall E
Todd Luxton, National Risk Management and Research Laboratory, US EPA, ORD, 5995 Center Hill Ave, Cincinnati, OH 45224, Amro El Badawy, Environmental Engineering, University of Cincinnati, College of Engineering, 653 Baldwin Hall, Cincinnati, OH 45221, Thabet Tolaymat, Nation Risk Management Research Laboratory, US EPA, ORD, 5995 Center Hill Ave., Cincinati, OH 45224 and Kirk Scheckel, US-EPA(Environ. Protection Agency), US EPA, 5995 Center Hill Avenue, Cincinnati, OH 45224-1702
  • Understanding and predicting the fate and transport of nano-materials in the environment requires a detailed characterization of the chemical and physical properties that control fate and transport.  In the current study we have evaluated chemical properties of silver nano-particles.  The properties of interest include: surface charging behavior, aggregation potential, chemical state of silver, and chemical reactivity.  Results indicate that the size, synthesis procedure, and capping agents used to control silver particle size all play a role in the chemical properties investigated.  The interaction between these factors will dramatically increase the complexity of developing accurate models to predict silver nano-particle fate and transport in natural and engineered environments.
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