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Simultaneous elimination of cationic uranium(vi) and anionic rhenium(vii) by graphene oxide-poly(ethyleneimine) macrostructures: a batch, XPS, EXAFS, and DFT combined study
Huang ZW(黄志伟); Li ZJ(李子杰); Wu QY(吴群燕); Zheng LR(郑黎荣); Shi WQ(石伟群); Huang, ZW; Li, ZJ; Wu, QY; Zheng, LR; Zhou, LM; Chai, ZF; Wang, XL; Shi, WQ
2018
Source PublicationENVIRONMENTAL SCIENCE-NANO
ISSN2051-8153
EISSN2051-8161
Volume5Issue:9Pages:2077-2087
SubtypeArticle
AbstractIn the field of radioactive wastewater treatment associated with environmental remediation, a big challenge is to achieve the simultaneous elimination of toxic metal cations and metallate anions. Herein, a three-dimensional (3D) graphene oxide-supported ethyleneimine polymer composite (GO-PEI) was synthesized by a self-assembly strategy and used for the simultaneous removal of cationic U(vi) and anionic Re(vii), which acts as a surrogate for Tc(vii), from aqueous solution. The maximum adsorption capacity of GO-PEI composites at pH 5.0 for U(vi) and at pH 3.5 for Re(vii) was determined to be 629.5 and 262.6 mg g(-1), respectively. Based on Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), extended X-ray absorption fine structure (EXAFS) analyses, and density functional theory (DFT) calculations, the adsorption of U(vi) is predominantly attributed to the coordination with abundant amino and oxygen-containing groups anchored on the hydrogel. In contrast, the removal of Re(vii) is correlated with the anion-exchange mechanism. In addition, GO-PEI has demonstrated a highly extractive adsorption capability toward U(vi) in ultralow concentrations. Our work may pave the way for creating an exciting new category of material with versatile capabilities for the treatment of radioactive effluent from the nuclear fuel cycle.
DOI10.1039/c8en00677f
WOS KeywordRAY PHOTOELECTRON-SPECTROSCOPY ; DENSITY-FUNCTIONAL THEORY ; OXIDE NANOSHEETS ; AQUEOUS-SOLUTION ; EXCHANGE RESIN ; ADSORPTION ; REMOVAL ; SORPTION ; CHITOSAN ; SEAWATER
Indexed BySCI ; EI
Language英语
WOS Research AreaChemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
WOS SubjectChemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology
WOS IDWOS:000445219100002
EI Accession Number20183905853060
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286355
Collection多学科研究中心
Corresponding AuthorShi WQ(石伟群)
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Huang ZW,Li ZJ,Wu QY,et al. Simultaneous elimination of cationic uranium(vi) and anionic rhenium(vii) by graphene oxide-poly(ethyleneimine) macrostructures: a batch, XPS, EXAFS, and DFT combined study[J]. ENVIRONMENTAL SCIENCE-NANO,2018,5(9):2077-2087.
APA 黄志伟.,李子杰.,吴群燕.,郑黎荣.,石伟群.,...&Shi, WQ.(2018).Simultaneous elimination of cationic uranium(vi) and anionic rhenium(vii) by graphene oxide-poly(ethyleneimine) macrostructures: a batch, XPS, EXAFS, and DFT combined study.ENVIRONMENTAL SCIENCE-NANO,5(9),2077-2087.
MLA 黄志伟,et al."Simultaneous elimination of cationic uranium(vi) and anionic rhenium(vii) by graphene oxide-poly(ethyleneimine) macrostructures: a batch, XPS, EXAFS, and DFT combined study".ENVIRONMENTAL SCIENCE-NANO 5.9(2018):2077-2087.
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