Yu Ying, Zhuang Yuan-Yi, Wang Zhong-Hua, Qiu Ming-Qiang
College of Physical Science and Technology, Central China Normal University, Wuhan 430079, PR China.
Chemosphere. 2004 Jan;54(3):425-30. doi: 10.1016/S0045-6535(03)00654-4.
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.
对五种水溶性染料在功能化树脂NKY上的吸附行为进行了动力学和热力学研究。结果表明，染料K-GN、K-2BP、KN-R、AAB和2G的吸附速率均受液膜扩散和颗粒扩散控制。平衡吸附数据可用三参数方程很好地描述。第一层吸附是化学作用增强的物理吸附，但多层吸附通常是物理吸附。标准自由能变化ΔG(0)和标准熵变化ΔS(0)表明染料在NKY上的吸附可以自发进行。
