期刊名称：Pakistan Journal of Analytical & Environmental Chemistry
印刷版ISSN：1996-918X
电子版ISSN：2221-5255
出版年度：2018
卷号：19
期号：1
页码：53-63
DOI：10.21743/pjaec/2018.06.05
语种：English
出版社：National Centre of Excellence in Analytical Chemsitry
摘要：Adsorption for alumina-cobalt (II) ions solution system was investigated as a function of adsorbent dose,contact time,temperature,pH of solution and initial concentration of adsorbate. The optimum conditions for removal of cobalt (II) ions were found as pH 7.5-8.5,adsorbent dose of solution 20 gl -1,equilibrium time 90 minutes and initial concentration range 5-50 mgl-1 . Pseudo-second-order kinetics was observed for adsorption of cobalt while cobalt removal process does not seem to control the intra-particle diffusion. Langmuir,Freundlich and DubninRadushkevich isotherm models were applied to analyze the equilibrium isotherms for adsorption of cobalt (II) ions onto alumina. The experimental results indicated that equilibrium data follows the Langmuir model within used concentration range..
