Diffuse infrared fourier transform spectroscopy in environmental chemistry

Abstract

The experimental implementation of Diffuse Infrared Fourier Transform Spectroscopy (DRIFTS) to the study of carbonaceous materials and catalysts is discussed in detail. Analytical methods used to sample and optimize the quality of infrared spectra processing are outlined. Several examples demonstrate the feasibility of this technique in the field of adsorption and catalysis: (1) An in-situ spectroscopy is applied to the elucidation of the oxidation mechanisms occurring during the treatment of a cellulose char under air; (2) the type of interactions occurring between adsorbed methanol or impregnated copper salts with carbonaceous materials was considered with respect to char surface chemistry; (3) the mode of adsorption of several aqueous organic adsorbates on titanium oxide was investigated. © 2005 Springer-Verlag Berlin Heidelberg.