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Laboratory Assessment of Nano-Silver Transport in Sand Columns Using Complex Conductivity Measurements
Citation:
Hawkins, D., M. Mcguire, G. Z. Abdel Aal, E. A. Atekwana, AND D. D. WERKEMA. Laboratory Assessment of Nano-Silver Transport in Sand Columns Using Complex Conductivity Measurements. Presented at Symposium on the Applications of Geophysics to Environmental and Engineering Problems, Keystone, CO, April 11 - 15, 2010.
Impact/Purpose:
Presentation materials
Description:
Nano-materials are emerging into the global marketplace. Nano-particles, and other throwaway nano-devices may constitute a whole new class of non-biodegradable pollutants of which scientists have very little understanding. Therefore, the production of significant quantities of nano-materials will inevitably result in the introduction of these materials to the environment with important implications for both environmental and human health. Currently there are many unanswered questions related to the release of nano-materials, their fate, transport, and transformation in the environment, and their potential toxic effects (Wiesner, 2007; Grassian, 2008; Sellers, 2009). Due to their desirable chemical–physical, electronic, and optical properties, metal nano-particles have attracted much attention and demonstrated a wide range of applications (Kamat, 2002; Oliveira et al., 2005). Among metal nano-particles, silver nano-particles possess many superior properties, such as increased electrical conductivity, antimicrobial activity, catalytic effect, etc. (Kabashin et al., 2003).
URLs/Downloads:
WERKEMA 10-012 PAPER PRESENTATION HAWKINS ET AL - SAGEEP 2010.PDF (PDF, NA pp, 157 KB, about PDF)WERKEMA 10-012 FINAL POSTER..PDF (PDF, NA pp, 1105 KB, about PDF)