Spectroscopic Methods for Investigating Reaction Pathways

Russell F. Howe*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter


This chapter reviews the use of infrared spectroscopy and electron paramagnetic resonance (EPR) spectroscopy to investigate reaction pathways in photocatalysis. In the case of infrared spectroscopy, examples are given from four different experimental methods for obtaining spectra of photocatalysts and adsorbed species: transmission, diffuse reflectance IR Fourier transform (DRIFT), attenuated total reflectance (ATR) and reflection–absorption infrared spectroscopy (RAIRS),which is applicable to single-crystal surfaces. EPR spectroscopy has been employed to observe trapped charge species (electrons and holes) and radical intermediates produced by reaction of electrons or holes with adsorbed species. Examples of both are given.

Original languageEnglish
Title of host publicationEnvironmental Photochemistry
Subtitle of host publicationPart III
EditorsDetlef W. Bahnemann, Peter K. J. Robertson
PublisherSpringer Verlag
Number of pages34
ISBN (Print)978-3-662-46794-7, 978-3-662-46795-4
Publication statusPublished - 1 Jan 2015

Publication series

NameHandbook of Environmental Chemistry
ISSN (Print)1867-979X


  • ATR
  • EPR spectroscopy
  • Radical intermediates
  • Transmission FTIR
  • Trapped electrons
  • Trapped holes


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