Metal Complexation, Absorption onto Titanium Dioxide and Irradiation Studies of Ethylenediaminetetraacetic Acid

Pitters, Christina, Emily Rames, Cleo Vidican, Jonathan Shafer, Hao-Yu Chen, and Katherine Lanigan

The complexation between several metal ions and ethylenediaminetetraacetic acid were carried out using UV/visible absorption and FTIR spectroscopy. In situ IR studies were done using attenuated total reflectance-infrared spectroscopy (ATR-FTIR) to examine the effects of pH, metal ion presence, and the presence of titanium dioxide particles on the complexation. Finally, irradiation of these complexes adsorbed to titanium dioxide particles was performed in order to investigate the photodegradation of metal-EDTA complexes by photocatalytic oxidation over titanium dioxide particles.