... y Leon and Radovic, 1994; Rodriquez–Reinoso et al., 1992; Carrasco-Marin et al., 1997; Salame and Bandosz, 1999; and others to be discussedspecifically later).5.4. SURFACE CHEMISTRY AND ITS ... 1547 Zeolites and Molecular Sieves 1577.1. Zeolite Types A, X, and Y / 1587.1.1. Structure and Cation Sites of Type A Zeolite /1587.1.2. Structure and Cation Sites of Types X and YZeolites ... SO3)andNOto(NO2) at ambient temperature in both gas phase and aqueous phase are well known and have been studied extensively (Komiyama and Smith, 1975; Py et al., 1995; Govindarao and Gopalakrishna,...