Li R.-D.,PLA Second Artillery Engineering University |
Hou L.-A.,Engineering Design and Research Institute of the Second Artillery Crops |
Zhang Z.-L.,PLA Second Artillery Engineering University |
Wang L.,No. 91003 Army of PLA |
Zhao B.,PLA Second Artillery Engineering University
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | Year: 2010
β-cyclodextrin (β-CD) was grafted on multiwall carbon nanotubes (MWCNT) by using plasma techniques. The new material of MWCNT-β-CD composites can adsorb radionuclides quickly. Effects of pH, contact time and ionic strength on the adsorption of Eu(III) to MWCNT-β-CD composites were investigated. The results indicate that the sorption of Eu(III) from aqueous solution is fast and more than 95% Eu(III) is adsorbed to MWCNT-β-CD composites. The adsorption capacity of MWCNT-β-CD composites is about 80 mg/g for Eu(III) calculated from the adsorption isotherms. Other ions and their concentrations have no obvious effect on adsorption of Eu(III) onto composite material of MWCNT-β-CD.