Adsorption of Uranyl ions on Amine-functionalization of MIL-101(Cr) Nanoparticles by a Facile Coordination-based Post-synthetic strategy and X-ray Absorption Spectroscopy Studies

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	Adsorption of Uranyl ions on Amine-functionalization of MIL-101(Cr) Nanoparticles by a Facile Coordination-based Post-synthetic strategy and X-ray Absorption Spectroscopy Studies
	Zhang, JY; Zhang, N; Zhang, LJ; Fang, YZ; Deng, W; Yu, M; Wang, ZQ; Li, L; Liu, XY; Li, JY
刊名	SCIENTIFIC REPORTS
	2015
卷号	5 页码:—
关键词	METAL-ORGANIC FRAMEWORKS URANIUM ADSORPTION AQUEOUS-SOLUTION SEA-WATER EXTRACTION SORPTION REMOVAL VI SEPARATION POROSITY
ISSN号	2045-2322
通讯作者	Fang, YZ (reprint author), Shanghai Inst Technol, Shanghai 200235, Peoples R China.
英文摘要	By a facile coordination-based post-synthetic strategy, the high surface area MIL-101(Cr) nanoparticles was functionallized by grafting amine group of ethylenediamine (ED) on coordinatively unsaturated Cr(III) centers, yielding a series of ED-MIL-101(Cr)-based adsorbents and their application for adsorption of U(VI) from aqueous solution were also studied. The obtained ED-functionallized samples with different ED contents were characterized by powder X-ray diffraction (PXRD), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), FTIR, elemental analysis (EA) and N-2 adsorption and desorption isothermal. Compared with the pristine MIL-101(Cr) sorbents, the ED-functionallized MIL-101(Cr) exhibits significantly higher adsorption capacity for U(VI) ions from water with maximum adsorption capacities as high as 200 mg/g (corresponding to 100% extraction rate) at pH of 4.5 with ED/Cr ratio of 0.68 and the sorbed U(VI) ions can easily be desorbed at lower pH (pH <= 2.0). The adsorption mode of U(VI) ions and effects of grafted ED on the MIL-101(Cr) frameworks were also been studied by X-ray absorption spectroscopy (XAS). We believe that this work establishes a simple and energy efficient route to a novel type of functional materials for U(VI) ions extraction from solution via the post-synthetic modification (PSM) strategy.
收录类别	SCI
语种	英语
WOS记录号	WOS:000360972500001
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24860]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Zhang, JY,Zhang, N,Zhang, LJ,et al. Adsorption of Uranyl ions on Amine-functionalization of MIL-101(Cr) Nanoparticles by a Facile Coordination-based Post-synthetic strategy and X-ray Absorption Spectroscopy Studies[J]. SCIENTIFIC REPORTS,2015,5:—.
APA	Zhang, JY.,Zhang, N.,Zhang, LJ.,Fang, YZ.,Deng, W.,...&Li, JY.(2015).Adsorption of Uranyl ions on Amine-functionalization of MIL-101(Cr) Nanoparticles by a Facile Coordination-based Post-synthetic strategy and X-ray Absorption Spectroscopy Studies.SCIENTIFIC REPORTS,5,—.
MLA	Zhang, JY,et al."Adsorption of Uranyl ions on Amine-functionalization of MIL-101(Cr) Nanoparticles by a Facile Coordination-based Post-synthetic strategy and X-ray Absorption Spectroscopy Studies".SCIENTIFIC REPORTS 5(2015):—.