Adsorption Study of Reactive Dyes on Cotton Fabric in Non-Aqueous Systems

Shi Xiong Yi; Yong Chun Dong

doi:10.4028/www.scientific.net/AMR.550-553.671

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Adsorption Study of Reactive Dyes on Cotton Fabric in Non-Aqueous Systems

Abstract:

Abstract: The non-ionic reverse micelles used for dyeing cotton fabric were prepared with a non-ionic surfactant Triton X-100 (TX-100) by injecting small amount of reactive dye aqueous solution. The effect of electrolyte on the adsorption capacity of reactive dyes onto cotton fabric in this system was studied. And the adsorption properties of three water-soluble anionic azo dyes including Reactive Blue 222, Reactive Red 195 and Reactive Yellow 145 onto cotton fabric in TX-100 reverse micelle were also studied and compared. The results indicated that reactive dyes showed a better adsorption property on cotton fabric in TX-100 reverse micelle without the addition of NaCl. The adsorption of the dyes onto cotton showed better agreement with Langmuir isotherm equation. Reactive Yellow 145 with lower negative charge and higher hydrophilicity exhibited the higher adsorption capacity than the other dyes. The adsorption process follows by the chemical adsorption.