A study on the adsorption of some cationic dyes onto acrylamide/itaconic acid hydrogels

Karadag E., Saraydin D. , Guven O.

POLYMER BULLETIN, vol.36, no.6, pp.745-752, 1996 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 6
  • Publication Date: 1996
  • Title of Journal : POLYMER BULLETIN
  • Page Numbers: pp.745-752


Acrylamide/itaconic acid (AAm/IA) hydrogels prepared by irradiating with gamma radiation were used in experiments on the adsorption of some cationic dyes such as basic red 9 (BR 9), basic green 4 (BG 4), cresyl violet (CV), and basic blue 20 (BB 20). Adsorption of the cationic dyes onto AAm/IA hydrogels is studied by batch adsorption technique. In the experiments of the adsorption, Langmiur type adsorption in the Giles classification system was found. Monolayer coverages for AAm/IA hydrogel-dye systems were calculated by using B point method. Adsorption studies indicated that monolayer coverages of AAm/IA hydrogel by these dyes were increased with following order; BE 20 > CV > BR 9 > BG 4.