IR SPECTROSCOPIC STUDY OF SO2 ADSORPTION ON MODIFIED Y-ZEOLITES

Authors
SHOR AM RUBAYLO AI
Citation
Am. Shor et Ai. Rubaylo, IR SPECTROSCOPIC STUDY OF SO2 ADSORPTION ON MODIFIED Y-ZEOLITES, Journal of molecular structure, 410, 1997, pp. 133-136
Citations number
10
Categorie Soggetti
Chemistry Physical
Journal title
Journal of molecular structure → ACNP
ISSN journal
00222860
Volume
410
Year of publication
1997
Pages
133 - 136
Database
ISI
SICI code
0022-2860(1997)410:<133:ISSOSA>2.0.ZU;2-C
Abstract
The adsorption of SO2 on Y zeolites, variously decationated and dealum inated, has been studied by IR spectroscopy. It is shown that the adso rption of SO2 on Y zeolites occurs in molecular form. The temperature of desorption of SO2 species decreases from 370 K to 300 K after decat ionation or dealumination of the initial NaY-zeolite. Na+ cations and OH groups are the centres of adsorption. No participation of basic and structural Lewis acid centres in SO2 adsorption was found. (C) 1997 E lsevier Science B.V.