INVESTIGADORES
ZUBIETA carolina Edith
artículos
Título:
The adsorption of dyes used in the textile industry on mesoporous materials.
Autor/es:
CAROLINA ZUBIETA; MARÍA BELÉN SIERRA; MARCELA A. MORINI; PABLO C. SCHULZ; LILIANA ALBERTENGO; MARÍA S. RODRIGUEZ
Revista:
COLLOID AND POLYMER SCIENCE
Editorial:
Springer Berlin / Heidelberg
Referencias:
Lugar: Berlin; Año: 2007 vol. 286 p. 377 - 384
ISSN:
0303-402X
Resumen:
Abstract An adsorbent material made with a silica lamellar
mesoporous material treated with chitosan has been proved
to be useful to adsorb both anionic and cationic dyes used
in the textile industry. The two tested dyes Tectilon Blue
(anionic) and Rhodamine B (cationic) have different
adsorption kinetics reflecting a complex mechanism of the
phenomenon. Furthermore, the adsorption capacity and
interaction strength of Tectilon Blue is higher than those
of Rhodamine B. Tectilon Blue molecules are situated with
the molecular plane perpendicular to the adsorbent surface,
whilst that of the Rhodamine B molecule is flat and parallel
to the surface. The differences may be attributed to the
different regions of the adsorbent surface on which the dyes
are adsorbed because of their different electric charge.