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Cationized nylon as adsorbent for anionic residual dyes
Author(s) -
Baouab Mohamed Hassen V,
Zghida Haïfa,
Gauthier Robert,
Gauthier Hélène
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.13427
Subject(s) - adsorption , potentiometric titration , ammonium chloride , aqueous solution , freundlich equation , langmuir , nylon 6 , chemistry , ion exchange , chloride , polymer chemistry , acid dye , nuclear chemistry , anhydrous , organic chemistry , ion , polymer , dyeing
For use as an ion exchanger, a cationized nylon (EPTMAC–nylon) was prepared by reacting nylon‐6,6 with epoxy propyl trimethyl ammonium chloride (EPTMAC), using anhydrous tin chloride (SnCl 2 ) as catalyst in a nonaqueous medium. Evidence of grafting was provided by atomic force microscopy and the exchange capacity of EPTMAC–nylon was evaluated by potentiometric titration. The adsorption of four dyes (Acid Blue 25, Acid Yellow 99, Reactive Yellow 23, and Acid Blue 74) from aqueous solutions using a batch process was studied according to the adsorption capacity of the cationized support. The effect of experimental parameters such as dye concentration and adsorption temperature were analyzed. The adsorption isotherms were determined at different temperatures and modeled using Langmuir, Freundlich, and Jossens equations. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 2513–2522, 2004