DRIFTS studies on the photosensitized transformation of gallic acid by iron(III) chloride as a model for HULIS in atmospheric aerosols.

@article{Wentworth2011DRIFTSSO,
  title={DRIFTS studies on the photosensitized transformation of gallic acid by iron(III) chloride as a model for HULIS in atmospheric aerosols.},
  author={Gregory R. Wentworth and Hind A Al-Abadleh},
  journal={Physical chemistry chemical physics : PCCP},
  year={2011},
  volume={13 14},
  pages={6507-16}
}
Little is known about the interfacial photochemistry of transition metal cations and chromophores relevant to atmospheric aerosols. We report herein water uptake and in situ surface-sensitive spectroscopic studies on the photosensitized transformation of solid gallic acid (GA), externally mixed with FeCl(3) as a photosensitizer, under dry and humid conditions of <1% and 30% relative humidity (RH), respectively. GA is a hydrolysis product of tannic acid, a model macromolecule for humic-like… CONTINUE READING