Department of Soil Science, Kahramanmaras Sütçü Imam University, 46100, Kahramanmaras, Turkey.
Bull Environ Contam Toxicol. 2010 Jan;84(1):147-51. doi: 10.1007/s00128-009-9899-x. Epub 2009 Nov 12.
The sorption characteristics of gyttja to remove copper (Cu(2+)) ions from aqueous solutions were satisfactorily described with the Freundlich, Langmuir and Dubinin-Redushckevich (D-R) models. The sorption capacity (q (max)) of gyttja was 11.76 mg g(-1). The D-R model indicated that the sorption of Cu(2+) by gyttja was almost taken place by chemisorption. Thermodynamic parameters such as change in free energy (DeltaG), enthalpy (DeltaH), and entropy (DeltaS) suggested that the adsorption process of Cu(2+) by gyttja was feasible, spontaneous and endothermic in nature. Kinetic examination of the equilibrium data showed that the sorption processes of Cu(2+) ions followed well pseudo-second-order kinetics model.
从水溶液中去除铜（Cu(2+)）离子的水藓吸附特性可用 Freundlich、Langmuir 和 Dubinin-Redushchek （D-R）模型进行很好地描述。水藓的吸附容量（q(max)）为 11.76 mg g(-1)。D-R 模型表明，水藓对 Cu(2+)的吸附几乎是通过化学吸附进行的。热力学参数，如自由能变化（DeltaG）、焓变（DeltaH）和熵变（DeltaS）表明，Cu(2+)被水藓吸附的过程是可行的，在本质上是自发的和吸热的。对平衡数据的动力学检验表明，Cu(2+)离子的吸附过程符合准二级动力学模型。
