Quantification of C60 Particle Characteristics in Environmentally Relevant Aqueous Systems Public

http://ir.library.oregonstate.edu/concern/honors_college_theses/qz20sv33j

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  • The production of the fullerene C60 and its emerging applications in consumer products imply its ultimate release to the environment. Due to the molecule’s relative novelty, the aqueous characteristics of C60 have not been fully assessed, though it may potentially harm human or ecological health. C60 is highly insoluble in water, and relatively little research has been performed on C60 aggregates that are released directly to natural waterways. In this research, multiple C60 suspensions were created via the suspended stirring method in natural Willamette River water, lab-made synthetic water, and deionized water. Analysis of these suspensions revealed that over a two month period, C60 particles in natural water are less stable than in synthetic water designed to mimic the natural water, and both are less stable than C60 particles that have been in suspension for a couple of years. Therefore, the behavior of C60 in real waterways with complex aqueous chemistry may be different than that predicted by lab experiments relying solely on synthetic water. This discrepancy should be considered when predicting the fate and bioavailability of C60 in natural waters.
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