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|Title:||Adsorption of styryl pyridinium dyes on CTAB treated silica|
|Authors:||Parida, Sudam K|
Mishra, (Ms)P K
Mishra, B K
|Abstract:||Cetyltrimethylammonium bromide (CTAB) adsorbs on silica surface and modifies the surface. The adsorption behaviour of some monochromophoric and bischromophoric styryl pyridinium dyes on CTAB treated silica (CTAB-silica) has been investigated. The adsorption model proposed by Gu and Zhu has been utilized to explain the type of adsorption isotherm. A low coverage of dye on CTAB-silica has been explained through apolar bonding. The rate constants of adsorption have also been determined. The adsorption behaviour of the dyes on CTAB-silica has been compared with that on silica, alkali treated silica and PEG treated silica surfaces.|
|Appears in Collections:||IJC-A Vol.38A(07) [July 1999]|
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