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Effect of Natural Organic Matter on the Light-initiated Transformation of Fullerenes
Citation:
Kong, L., K. Chen, R. G. ZEPP, X. MA, D. BOUCHARD, AND C. Isaacson. Effect of Natural Organic Matter on the Light-initiated Transformation of Fullerenes. Presented at 239th ACS National Meeting & Exposition, San Francisco, CA, March 21 - 25, 2010.
Impact/Purpose:
Scientific meeting presentation.
Description:
Natural organic matter (NOM) is ubiquitous in natural environments. Previous research has observed enhanced dispersion of Buckminster fullerene (C60) in water in the presence of NOM. It is also well-known that NOM can impact the photoreaction of many organic compounds by producing reactive oxygen species (ROS) such as, singlet oxygen, superoxide and hydroxyl radical. Here we show that the phototransformations of C60 and fullerenol have very different dependencies on NOM concentrations. Corrected for light attenuation effects, C60 photoreaction rates generally decreased on addition of NOM but fullerenol rates were enhanced compared to controls without added NOM.
URLs/Downloads:
ZEPP_KONG 09 129A_ACS 2010SPRING_TALK.PDF (PDF, NA pp, 306 KB, about PDF)ZEPP_KONG 09 129 ACS.PDF (PDF, NA pp, 14 KB, about PDF)