Simultaneous elimination of cationic uranium(vi) and anionic rhenium(vii) by graphene oxide-poly(ethyleneimine) macrostructures: a batch, XPS, EXAFS, and DFT combined study

doi:10.1039/c8en00677f

	Simultaneous elimination of cationic uranium(vi) and anionic rhenium(vii) by graphene oxide-poly(ethyleneimine) macrostructures: a batch, XPS, EXAFS, and DFT combined study
	Shi WQ(石伟群); Huang ZW(黄志伟); Li ZJ(李子杰); Wu QY(吴群燕); Zheng LR(郑黎荣); Huang, ZW; Li, ZJ; Wu, QY; Zheng, LR; Zhou, LM
刊名	ENVIRONMENTAL SCIENCE-NANO
	2018
卷号	5 期号:9 页码:2077-2087
ISSN号	2051-8153
DOI	10.1039/c8en00677f
文献子类	Article
英文摘要	In 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.
电子版国际标准刊号	2051-8161
WOS关键词	RAY PHOTOELECTRON-SPECTROSCOPY ; DENSITY-FUNCTIONAL THEORY ; OXIDE NANOSHEETS ; AQUEOUS-SOLUTION ; EXCHANGE RESIN ; ADSORPTION ; REMOVAL ; SORPTION ; CHITOSAN ; SEAWATER
WOS研究方向	Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000445219100002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286355]
专题	高能物理研究所_多学科研究中心
通讯作者	Shi WQ(石伟群)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Shi WQ,Huang ZW,Li ZJ,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	石伟群.,黄志伟.,李子杰.,吴群燕.,郑黎荣.,...&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	石伟群,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.