期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep19367
关键词
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资金
- Heilongjiang Province Natural Science Funds for Distinguished Young Scholars
- Special Innovation Talents of Harbin Science and Technology for Distinguished Young Scholars [2014RFYXJ005]
- Fundamental Research Funds of the Central University (HEUCFZ)
- Natural Science Foundation of Heilongjiang Province [B201316]
- Program of International S&T Cooperation special project [2015DFR50050]
- Special Innovation Talents of Harbin Science and Technology [2014RFQXJ087]
- Transformation of Scientific and Technological Achievements of Harbin [2013DB4BG011]
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.
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