A novel vertical attenuated total reflectance photochemical flow-through reaction cell for Fourier transform infrared spectroscopy.
A unique photochemical cell design and two experiments are presented, which illustrate the usefulness of flow-through attenuated total reflectance (ATR) Fourier transform infrared (FT-IR) spectroscopy as a technique for investigating photochemical reactions at the mineral-water interface. The kinetics of the photolysis reaction of potassium oxalate (K(2)C(2)O(4)) in a ferric iron solution and oxalate adsorbed onto goethite (alpha-FeOOH) were investigated to show the capabilities of the cell. Due to complicated kinetics, the adsorption experiment demonstrates not only the types of complex problems, that may exist at the mineral-water interface, but also the ability for this novel cell design to address them.
Borda
Michael J
MJ
Department of Geosciences, ESS Building, The State University of New York at Stony Brook, Stony Brook, NY 11794-2100, USA. mikc@pbisotopes.ess.sunysb.edu
Strongin
Daniel R
DR
Schoonen
Martin A
MA
D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D017550:Spectroscopy, Fourier Transform Infrared / Q000295:instrumentation