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Interaction mechanism of uranium(VI) with three-dimensional graphene oxide-chitosan composite: Insights from batch experiments, IR, XPS, and EXAFS spectroscopy
Huang, ZW; Li, ZJ; Zheng, LR; Zhou, LM; Chai, ZF; Wang, XL; Shi, WQ; Zheng LR(郑黎荣)
2017
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
EISSN1873-3212
Volume328Pages:1066-1074
SubtypeArticle
AbstractAiming at the efficient and convenient treatment of radioactive wastewater, a graphene oxide-chitosan aerogel (GO-CS) was fabricated and utilized for uranium(VI) elimination. The adsorption of U(VI) on the aerogel was evaluated as a function of contact time, solution pH, ionic strength, initial uranium concentration, and competing metal ions. High adsorption capacity for the uranium could be achieved over a wide pH range, e.g., 200, 319.9, and 384.6 mg/g at pH 3.5, 5.0, and 8.3, respectively. The interaction mechanism of U(VI) with GO-CS was systematically clarified by using Fourier transformation infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), and extended X-ray absorption fine structure spectroscopy (EXAFS). It was found that the U(VI) adsorption was mainly ascribed to the inner-sphere surface complexation by -COO , -OH, and -NH2 groups anchored on the GO-CS and the involvement of these functional groups toward the coordination sphere was largely relevant to solution pH. At mild alkaline pH, -NH2 groups play a more important role, therefore leading to an extraordinarily high extraction of uranium from simulated seawater. (C) 2017 Elsevier B.V. All rights reserved.
KeywordGraphene-based macrostructures Chitosan Uranium Adsorption Extended X-ray absorption fine structure spectroscopy (EXAFS)
DOI10.1016/j.cej.2017.07.067
WOS KeywordAQUEOUS-SOLUTIONS ; METAL-IONS ; PHYSICOCHEMICAL PARAMETERS ; THEORETICAL CALCULATIONS ; EFFICIENT ENRICHMENT ; WATER-PURIFICATION ; URANYL IONS ; ADSORPTION ; U(VI) ; SORPTION
Indexed BySCI ; EI ; SCOPUS
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000411118300103
EI Accession Number20173003981925
EI KeywordsAbsorption spectra - Adsorption - Aerogels - Alkalinity - Atomic physics - Chemicals removal (water treatment) - Chitosan - Extended X ray absorption fine structure spectroscopy - Fourier transforms - Graphene - Ionic strength - Metal ions - Metals - Multilayers - Self assembly - Uranium - Uranium compounds - Wastewater treatment - X ray absorption
EI Classification Number452.4 Industrial Wastes Treatment and Disposal - 531.1 Metallurgy - 547 Minor, Precious and Rare Earth Metals and Alloys - 711 Electromagnetic Waves - 711.2 Electromagnetic Waves in Relation to Various Structures - 761 Nanotechnology - 801 Chemistry - 802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 921.3 Mathematical Transformations - 931.3 Atomic and Molecular Physics - 951 Materials Science
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285275
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Huang, ZW,Li, ZJ,Zheng, LR,et al. Interaction mechanism of uranium(VI) with three-dimensional graphene oxide-chitosan composite: Insights from batch experiments, IR, XPS, and EXAFS spectroscopy[J]. CHEMICAL ENGINEERING JOURNAL,2017,328:1066-1074.
APA Huang, ZW.,Li, ZJ.,Zheng, LR.,Zhou, LM.,Chai, ZF.,...&郑黎荣.(2017).Interaction mechanism of uranium(VI) with three-dimensional graphene oxide-chitosan composite: Insights from batch experiments, IR, XPS, and EXAFS spectroscopy.CHEMICAL ENGINEERING JOURNAL,328,1066-1074.
MLA Huang, ZW,et al."Interaction mechanism of uranium(VI) with three-dimensional graphene oxide-chitosan composite: Insights from batch experiments, IR, XPS, and EXAFS spectroscopy".CHEMICAL ENGINEERING JOURNAL 328(2017):1066-1074.
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