Adsorption of uranium(VI) from aqueous solutions using cross-linked magnetic chitosan beads

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• 作者：Guolin Huang ; Lixia Zou ; Yu Su ; Tingting Lv…
• 关键词：Cross ; linked magnetic chitosan ; Uranium ; Adsorption capacity ; Isotherms
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：307
• 期：2
• 页码：1135-1140
• 全文大小：1,298 KB
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• 作者单位：Guolin Huang (1)
  Lixia Zou (1)
  Yu Su (1)
  Tingting Lv (1)
  Lele Wang (1)
  
  1. Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense, East China University of Technology, Nanchang, 330013, Jiangxi, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nuclear Chemistry
  Physical Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  Diagnostic Radiology
  Inorganic Chemistry
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2780

文摘

The performance of a cross-linked magnetic chitosan has been investigated for the adsorption of U(VI) from aqueous solutions. The influences of the pH of solution, the initial concentration of U(VI) ions and the contact time on the adsorption amounts have been discussed, and the appropriate process conditions for the adsorption of U(VI) have been obtained. The adsorption experimental equilibrium data was found to fit the Langmuir model well, and the uptake of U(VI) was 161.3 mg g−1. Two simplified models including pseudo-first order and pseudo-second order equations are selected to follow the adsorption process. Keywords Cross-linked magnetic chitosan Uranium Adsorption capacity Isotherms