Presented will be recent studies on the use of cerium oxide nanoparticle for the degradation of halogenated aromatics.  Nanometer scale ceria particles are prepared and investigated for their ability to dehalogenate aromatic substrates in the presence of light greater than 330 nm. The photodegradation studies are carried out on halogenated organic molecules such as hexachlorobenzene.  The degradation products are analyzed by SPME-GC/MS and NMR studies.  The time course and matrix effects on environmentally relevant samples have been studied through multiple investigations.  The effects of salts commonly found in environmental samples have been investigated to determine their effect on the catalysis as well as the lifetime of the nanoparticle in solution.  Also, pH dependency of the rate and type of product formation has been studied.

Study of the utility of ceria nanoparticles for the photodegradation of haloaromatic compounds

243rd National Meeting (2012)

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