Interaction mechanism of uranium(vi) with three-dimensional graphene oxide-chitosan composite: insights from batch experiments, ir, xps, and exafs spectroscopy
文献类型：期刊论文
| 作者 | Huang, Zhiwei1,2,3; Li, Zijie1,2; Zheng, Lirong4; Zhou, Limin2,3; Chai, Zhifang1,2; Wang, Xiaolin5; Shi, Weiqun1,2 |
| 刊名 | Chemical engineering journal
 |
| 出版日期 | 2017-11-15 |
| 卷号 | 328页码:1066-1074 |
| 关键词 | Graphene-based macrostructures Chitosan Uranium Adsorption Extended x-ray absorption fine structure Spectroscopy (exafs) |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2017.07.067 |
| 通讯作者 | Shi, weiqun(shiwq@ihep.ac.cn) |
| 英文摘要 | Aiming 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. |
| WOS关键词 | AQUEOUS-SOLUTIONS ; METAL-IONS ; PHYSICOCHEMICAL PARAMETERS ; THEORETICAL CALCULATIONS ; EFFICIENT ENRICHMENT ; WATER-PURIFICATION ; URANYL IONS ; ADSORPTION ; U(VI) ; SORPTION |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Environmental ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000411118300103 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177055 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Shi, Weiqun |
| 作者单位 | 1.Chinese Acad Sci, Lab Nucl Energy Chem, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Biomed Effects Nanomat & Nanosafety, Inst High Energy Phys, Beijing 100049, Peoples R China 3.East China Univ Technol, Sch Chem Biol & Mat Sci, Nanchang 330013, Jiangxi, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 5.China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Zhiwei,Li, Zijie,Zheng, Lirong,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, Zhiwei.,Li, Zijie.,Zheng, Lirong.,Zhou, Limin.,Chai, Zhifang.,...&Shi, Weiqun.(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, Zhiwei,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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来源：高能物理研究所
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