• 文献标题:   Sorption of radionuclides and metals to graphene oxide and magnetic graphene oxide
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   LUJANIENE G, SEMCUK S, KULAKAUSKAITE I, MAZEIKA K, VALIULIS D, JUSKENAS R, TAUTKUS S
  • 作者关键词:   pu, am, heavy metal, sorption, magnetic graphene oxide
  • 出版物名称:   JOURNAL OF RADIOANALYTICAL NUCLEAR CHEMISTRY
  • ISSN:   0236-5731 EI 1588-2780
  • 通讯作者地址:   SRI Ctr Phys Sci Technol
  • 被引频次:   11
  • DOI:   10.1007/s10967-015-4461-2
  • 出版年:   2016

▎ 摘  要

Graphene oxide (GO) and two magnetic graphene oxide (MGO) composites with a different amount of magnetite were synthesized, characterized and used in sorption experiments. The effect of pH on sorption of Am(III) and Pu(IV) isotopes as well as Co(II), Ni(II), Cu(II) and Pb(II) to GO and MGO was studied in equilibrium and kinetic experiments. The adsorption capacities varied from 30 to 574 mg g(-1) while rate constants ranged from 0.29 to 0.46 min(-1) and increased in the following order Co, Cu, Pb and Ni. Large variations in the uptake of studied elements by adsorbents depending on initial and final pH of solutions were observed.