Affiliation:
1. Pakistan Atomic Energy Commission, P.O. Box 1611, Islamabad, Pakistan
Abstract
The temperature dependence of the kinetics of the adsorption of neodymium ions from aqueous solution onto activated charcoal has been studied. The results obtained indicate that a form of equilibration appears to be attained after ca. 30 min although further very slow changes may occur over a much longer period. The adsorption process is controlled by the diffusion of neodymium ions into the pores of the activated charcoal. Adsorption follows first-order kinetics with an activation energy of 13.09 kJ/mol. Values of the equilibrium constant for the adsorption of neodymium ions onto activated charcoal increase with increasing temperature, thereby indicate the endothermic nature of the process.
Subject
Surfaces and Interfaces,General Chemical Engineering,General Chemistry
Reference21 articles.
1. Adsorption of phosphate ions by collodion-coated alumina
2. Determination of the ion adsorption by the radioactive tracer technique
3. Kuwabara T., Yazawa A. (1993) Proc. 1st Int. Conf. Processing Materials for Properties, Honolulu, Hawaii, November 7–10, Vol. 1, p. 533.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献