Adsorption of UO22+ ions from aqueous solution using amine functionalized MWCNT: kinetic, thermodynamic and isotherm study

作者：Alijani Hassan; Beyki Mostafa Hossein; Mirzababaei Seyed Nima^*

来源：Journal of Radioanalytical and Nuclear Chemistry, 2015, 306(1): 165-173.

DOI：10.1007/s10967-015-4078-5

• Adsorption
• Amine
• Carbon nano tube
• Uranyl

The adsorption of UO22+ ions from aqueous solution using ethylene diamine and triazine functionalized multiwall carbon nanotubes have been investigated. The result for kinetic study within 90 min revealed that with increasing the time, uranium adsorption increased and process followed pseudo first order model. Isotherm study was investigated using Langmuir and Freundlich model as maximum adsorption capacity by ethylene diamine and triazine was 69.44 and 74.62 mg g(-1) respectively. Thermodynamic parameters shows negative value of Gibbs free energy and endothermic pathway for uranium adsorption. These results indicate that prepared sorbent has good efficiency for uranium adsorption from aqueous solutions.

• 出版日期2015-10