• 文献标题:   A graphene oxide/amidoxime hydrogel for enhanced uranium capture
  • 文献类型:   Article
  • 作  者:   WANG FH, LI HP, LIU Q, LI ZS, LI RM, ZHANG HS, LIU LH, EMELCHENKO GA, WANG J
  • 作者关键词:  
  • 出版物名称:   SCIENTIFIC REPORTS
  • ISSN:   2045-2322
  • 通讯作者地址:   Harbin Engn Univ
  • 被引频次:   55
  • DOI:   10.1038/srep19367
  • 出版年:   2016

▎ 摘  要

The efficient development of selective materials for the recovery of uranium from nuclear waste and seawater is necessary for their potential application in nuclear fuel and the mitigation of nuclear pollution. In this work, a graphene oxide/amidoxime hydrogel (AGH) exhibits a promising adsorption performance for uranium from various aqueous solutions, including simulated seawater. We show high adsorption capacities (Q(m) = 398.4 mg g(-1)) and high % removals at ppm or ppb levels in aqueous solutions for uranium species. In the presence of high concentrations of competitive ions such as Mg2+, Ca2+, Ba2+ and Sr2+, AGH displays an enhanced selectivity for uranium. For low uranium concentrations in simulated seawater, AGH binds uranium efficiently and selectively. The results presented here reveal that the AGH is a potential adsorbent for remediating nuclear industrial effluent and adsorbing uranium from seawater.