Adsorption of water-soluble dyes onto modified resin

作者：Yu Y^*; Zhang YY; Wang ZH; Qiu MQ

来源：Chemosphere, 2004, 54(3): 425-430.

DOI：10.1016/S0045-6535(03)00654-4

• modified resin
• water-soluble dyes
• adsorption
• kinetic and thermodynamic

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 DeltaGdegrees and standard entropy change DeltaSdegrees indicate the adsorption of the dyes onto NKY can occur spontaneously.

• 出版日期2004-1
• 单位华中师范大学