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Updated: Aug 30, 2026

Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks
Published on: May 8, 2015
Adsorption of water-soluble dyes onto modified resin
Ying Yu1, Yuan-Yi Zhuang, Zhong-Hua Wang
1College of Physical Science and Technology, Central China Normal University, Wuhan 430079, PR China. yyhtata@yahoo.com.cn
Abstract:
Adsorption behavior of five kinds of water-soluble dyes onto functionalized resin NKY has been dynamically and thermodynamically investigated. The results showed that the adsorption rates of dye K-GN, K-2BP, KN-R, AAB and 2G are all controlled by liquid film diffusion and particle diffusion. Equilibrium adsorption data can be well described by three-parameter equation. The first layer adsorption is the physical enhanced by chemical effect but multilayer adsorption is typically physical adsorption. Standard free energy change DeltaG(0) and standard entropy change DeltaS(0) indicate the adsorption of the dyes onto NKY can occur spontaneously.
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