THE EFFECT OF SURFACE-ACIDITY UPON THE ADSORPTION CAPACITIES OF ACTIVATED CARBONS

Authors
GUZEL F
Citation
F. Guzel, THE EFFECT OF SURFACE-ACIDITY UPON THE ADSORPTION CAPACITIES OF ACTIVATED CARBONS, Separation science and technology, 31(2), 1996, pp. 283-290
Citations number
6
Categorie Soggetti
Engineering, Chemical","Chemistry Analytical
Journal title
Separation science and technology → ACNP
ISSN journal
01496395
Volume
31
Issue
2
Year of publication
1996
Pages
283 - 290
Database
ISI
SICI code
0149-6395(1996)31:2<283:TEOSUT>2.0.ZU;2-U
Abstract
In this study the effects of the surface acidity of adsorbents on adso rption from solution are investigated. For this purpose, methylene blu e (cationic) and metanil yellow (anionic) adsorbates, which have oppos ite ionic characters, are used. At 298 K, the values of surface acidit y indicate that methylene blue molecules occur on the surface at a gre ater probability than those of metanil yellow. That is, metanil yellow molecules are repulsed from the surface and methylene blue molecules are attracted to the surface.