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Pollutant trapping studies. 2 —Spontaneous and resonance Raman studies of the surface reaction of sulphur dioxide on zeolites
Author(s) -
Tsai Peter,
Cooney Ralph P.
Publication year - 1980
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250090110
Subject(s) - raman spectroscopy , chemistry , adsorption , resonance (particle physics) , crystal (programming language) , sulfur dioxide , oxide , analytical chemistry (journal) , photochemistry , inorganic chemistry , organic chemistry , atomic physics , optics , physics , computer science , programming language
Raman spectra of SO 2 adsorbed on zeolites X, Y and A are reported together with a normal coordinate analysis of the various spectra of the adsorbed molecuar SO 2 . The data indicate that crystal‐like SO 2 is adsorbed on cation sites II and III of the zeolitic oxide framework. Internal SO 2 force constants quantifying adsorbate distortion are developed and compared with the frequency difference parameter,Δ(ν 3 –ν 1 ). Raman spectral data also indicate the formation of several decomposition products of SO 2 , generated by surface reactions, which may include S 3 − , S 2 , S 4 , S x O, SO 3 2−and SO 4 2− . Of these the lines attributed to S 3 − , S 2 , S 4 and S x O exhibit resonance enhancement.