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Metal-Organic Frameworks Hkust-1 for Liquid-Phase Adsorption of Uranium
Feng YF(冯亚菲); Jiang H(姜恒); Li SN; Wang J; Jing XY; Wang YR(王育人); Chen M(陈猛); Wang, YR (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv Sci, Beijing 100190, Peoples R China.
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
2013
Volume431Pages:87-92
ISSN0927-7757
AbstractThis paper reports on the efficient adsorption for uranium by metal-organic frameworks (MOFs) HKUST-1 from aqueous solution. The structure of the prepared HKUST-1 was characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR) and nitrogen adsorption/desorption analysis. The influences of different experimental parameters were studied, such as initial solution pH, adsorbent dosage, adsorption time, temperature and various concentrations of uranium uptake. The thermodynamic parameters including Gibbs free energy (Delta G(0)), standard enthalpy change (Delta H-0) and standard entropy change (Delta S-0) for the process were calculated using the Langmuir constants. The results showed that the equilibrium data fitted well to Langmuir model in the studied range of uranium concentration (10 mg/L-800 mg/L) and temperature (298 K-318 K), and the HKUST-1 exhibited the highest uptake for uranium at 318 K, at the initial solution pH value of 6 and at the initial uranium concentration of 800 mg/L. The thermodynamics of uranium/HKUST-1 system indicated the spontaneous and endothermic nature of the process. And the kinetics of the adsorption process followed the pseudo-second-order kinetics model. (C) 2013 Elsevier B.V. All rights reserved.
KeywordMetal-organic Frameworks Hkust-1 Liquid-phase Adsorption Uranium
DOI10.1016/j.colsurfa.2013.04.032
Indexed BySCI ; EI
Language英语
WOS IDWOS:000321417900012
WOS KeywordMICROPOROUS COORDINATION POLYMERS ; AQUEOUS-SOLUTIONS ; REMOVAL ; SORPTION ; CU-3(BTC)(2) ; ACTIVATION ; STABILITY ; WATER ; ADSORBENTS ; EFFICIENT
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Basic Research Program of China (973 Program) [2011CB710901] ; Fundamental Research Funds of the Central University (HEUCFZ)
DepartmentNML空间材料物理力学
ClassificationQ3
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58577
Collection国家微重力实验室
Corresponding AuthorWang, YR (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv Sci, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Feng YF,Jiang H,Li SN,et al. Metal-Organic Frameworks Hkust-1 for Liquid-Phase Adsorption of Uranium[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2013,431:87-92
APA 冯亚菲.,姜恒.,Li SN.,Wang J.,Jing XY.,...&Wang, YR .(2013).Metal-Organic Frameworks Hkust-1 for Liquid-Phase Adsorption of Uranium.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,431,87-92.
MLA 冯亚菲,et al."Metal-Organic Frameworks Hkust-1 for Liquid-Phase Adsorption of Uranium".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 431(2013):87-92.
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