• 文献标题:   Amine-functionalized graphene oxide/zinc hexacyanoferrate composites for cesium removal from aqueous solutions
  • 文献类型:   Article
  • 作  者:   CHOI JW, PARK YJ, LEE HK, CHOI SJ
  • 作者关键词:   adsorption, cesium, zinc hexacyanoferrate, adsorbent, radionuclide, radioactive liquid waste, graphene oxide
  • 出版物名称:   JOURNAL OF RADIOANALYTICAL NUCLEAR CHEMISTRY
  • ISSN:   0236-5731 EI 1588-2780
  • 通讯作者地址:   Kyungpook Natl Univ
  • 被引频次:   0
  • DOI:   10.1007/s10967-019-07002-w
  • 出版年:   2020

▎ 摘  要

Amine-functionalized graphene oxide/zinc hexacyanoferrate (amino-rGO/ZnHCF) composites were successfully synthesized for the removal of Cs+ from radioactive liquid waste. Their morphologies, surface areas, pore sizes, functional groups, and thermal stabilities were investigated by field-emission transmission electron microscopy, Brunauer-Emmett-Teller analysis, Fourier transform infrared spectroscopy, and thermogravimetry. Adsorption experiments revealed high adsorption capacities at pH 5-7 and stability below pH 9. The dependence of the synthesized composites on the pseudo-second-order model and the Temkin model was also observed. The results of this study indicate that the new amino-rGO/ZnHCF composites are good adsorbent candidates for Cs removal from aqueous solutions.