Type of Document	Master's Thesis
Author	Heathcock, April Marie
Author's Email Address	heathcoa@vt.edu
URN	etd-08032006-125444
Title	Characterization of Magnetite Nanoparticle Reactivity in the Presence of Carbon Tetrachloride
Degree	Master of Science
Department	Environmental Engineering
Advisory Committee	Advisor Name Title Vikesland, Peter J. Committee Chair Edwards, Marc A. Committee Member Little, John C. Committee Member
Keywords	carbon tetrachloride. groundwater remediation Magnetite organic solvent Nanotechnology nanoparticle
Date of Defense	2006-07-24
Availability	restricted
Abstract Throughout the United States, there are a large number of groundwater systems contaminated by chlorinated organic compounds. Of these compounds, carbon tetrachloride (CT) is one of the most frequently encountered due to its past, widespread industrial use. In anaerobic groundwater environments, CT has been shown to be susceptible to degradation by both biotic and abiotic processes. One abiotic process that has been researched extensively is the reduction of CT by iron metal and associated iron oxides and hydroxides. Magnetite, an iron oxide, is a ubiquitous component of many subsurface environments and has been investigated as a potential groundwater remediation technology. One beneficial characteristic of magnetite is the capability to be synthetically produced in various sizes and shapes - including particles within the nanoscale range. Nanoscale particles have been shown to be more reactive towards contaminants than larger sized particles due to their large surface areas and high surface reactivity. This project was designed to characterize the behavior of synthetic magnetite in the presence of carbon tetrachloride under anaerobic conditions.
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