Citation
Xs. Zhao et al., Organophilicity of MCM-41 adsorbents studied by adsorption and temperature-programmed desorption, COLL SURF A, 179(2-3), 2001, pp. 261-269
Citations number
29
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757
→ ACNP
Volume
179
Issue
2-3
Year of publication
2001
Pages
261 - 269
Database
ISI
SICI code
0927-7757(20010430)179:2-3<261:OOMASB>2.0.ZU;2-4
Abstract
In this paper, the organophilic property of MCM-41 was studied and compared
with hydrophobic silicalite-l using adsorption and temperature-programmed
desorption (TPD) methods. The surface heterogeneity of MCM-41 was evaluated
in terms of activation energy for desorption (E-d) and isosteric heat of a
dsorption (q(st)). Results show that MCM-41 has a higher affinity to polar
organic compounds than to non-polar organics while silicalite-l has a highe
r affinity to non-polar organic compounds than to polar organics. This orga
nophilic behaviour of MCM-41 is attributed to its surface heterogeneity. (C
) 2001 Elsevier Science B.V. All rights reserved.