Efficient capture of ReO4- on magnetic amine-functionalized MIL-101 (Cr) Revealing from selectivity to mechanism

doi:10.1016/j.scitotenv.2020.144840

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	Efficient capture of ReO4- on magnetic amine-functionalized MIL-101 (Cr) Revealing from selectivity to mechanism
	Cai, Yawen; Feng, Jinghua; Tan, Xiaoli; Wang, Xin; Lv, Zhimin; Chen, Weiwei; Fang, Ming; Liu, Haining; Wang, Xiangke
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-06-01
卷号	771
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.144840
英文摘要	The efficient decontamination of pertechnetate ((TcO4-)-Tc-99) is an essential task for managing radioactive Tc-99 in nuclear wastes. Perrhenate, (ReO4-), as a nonradioactive analog, exhibits almost identical physicochemical properties as (TcO4-)-Tc-99. Herein, a novel magnetic amine-functionalized MIL-101(Cr) (NH2-MIL-101(Cr)@Fe3O4) was prepared and used to efficiently remove Rear from solution for the facile magnetic separation. A series of environmental parameters were considered to investigate the adsorption performance of NH2-MIL-101(Cr)@Fe3O4. Experimental results suggested that NH2-MIL-101(Cr)@Fe3O4 has reached a satisfied adsorption capacity (similar to 401 mg/g) and a very fast adsorption kinetics at pH 7.0. The selectivity for ReO4- was maintained even in the presence of interfering anions with relatively high concentrations. ReO4- were mainly captured by N-donor sites of the surface-decorated amine via complexation and were trapped in the cavities of modified MIL-101 (Cr). NH2-MIL-101(Cr)@Fe3O4 exhibits satisfactory adsorption performance for ReO4- and can be conveniently separated from wastewaters after adsorption. (C) 2021 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34347]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Cai, Yawen,Feng, Jinghua,Tan, Xiaoli,et al. Efficient capture of ReO4- on magnetic amine-functionalized MIL-101 (Cr) Revealing from selectivity to mechanism[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,771.
APA	Cai, Yawen.,Feng, Jinghua.,Tan, Xiaoli.,Wang, Xin.,Lv, Zhimin.,...&Wang, Xiangke.(2021).Efficient capture of ReO4- on magnetic amine-functionalized MIL-101 (Cr) Revealing from selectivity to mechanism.SCIENCE OF THE TOTAL ENVIRONMENT,771.
MLA	Cai, Yawen,et al."Efficient capture of ReO4- on magnetic amine-functionalized MIL-101 (Cr) Revealing from selectivity to mechanism".SCIENCE OF THE TOTAL ENVIRONMENT 771(2021).