12-P-07-Characterization of aluminosilicate zeolites by UV-raman spectroscopy

Abstract

This chapter discusses the characterization of aluminosilicate zeolites by ultraviolet (UV)–Raman spectroscopy. UV–Raman spectra of various zeolites give strong and clear bands with high resolution while conventional Raman spectra of these zeolites are difficult to obtain because of the strong background fluorescence. A summary of these UV–Raman spectra over various aluminosilicate zeolites suggests that the bands at 470–530, 370–430, 290–410, and 220–280 cm -l are assigned to the bending modes of 4-, 5-, 6-, and 8-membered rings of aluminosilicate zeolites, respectively.