Conversion of supramolecular organic framework to uranyl-organic coordination complex: a new "matrix-free" strategy for highly efficient capture of uranium
文献类型：期刊论文
| 作者 | Li, Bo1; Wang, Lei1; Li, Yang1; Wang, Dongqi2; Wen, Rui1; Guo, Xinghua1; Li, Shoujian1; Ma, Lijian1; Tian, Yin3 |
| 刊名 | Rsc advances
 |
| 出版日期 | 2017 |
| 卷号 | 7期号:15页码:8985-8993 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c6ra28356j |
| 通讯作者 | Li, shoujian(sjli000616@scu.edu.cn) ; Ma, lijian(ma.lj@hotmail.com) ; Tian, yin(tianyin@swip.ac.cn) |
| 英文摘要 | Herein, an innovative "matrix-free" strategy has been proposed for highly efficient uranium capture via uranyl-induced disassembly and reassembly of the two functional building blocks of the as-prepared hydrogen-bonded supramolecular organic framework (hsof), which is composed of n-donor-containing melamine and o-donor-containing trimesic acid self-assembled through hydrogen bonding. the batch experimental results demonstrated that hsof possesses excellent extraction capacity (q(m) = 444 mg g(-1)), >99% removal efficiency in the range of tested u((vi)) concentration (20-130 ppm) with a considerably large k-d(u) value of 1.3 x 10(7) ml g(-1) at 130 ppm, and very fast extraction rate (< 10 min) for uo22+. especially, the uranium selectivity (s-u = q(e-u)/q(e-tol)) of hsof stays above 80% over the ph range tested in a uranium-containing solution with 11 competing cations, and distinctively, reaches the so far unreported 99% with a great capacity of 309 mg g(-1) at ph 2.5. it is worth noting that a clear morphology transformation of hsof nanowires to nanosheets of the uranyl-organic coordination complex (uocc) after extraction has been observed only in the presence of uranyl ions. moreover, according to experimental characterization and dft studies, a possible mechanism for the efficient capture of uranium is proposed: the stronger coordination interaction among uranyl, tma and ma could replace the weaker hydrogen-bond interaction originally linking the two building blocks in hsof in the extraction process. |
| WOS关键词 | FUNCTIONALIZED HYDROTHERMAL CARBON ; SOLID-PHASE EXTRACTION ; SORPTION BEHAVIOR ; DRUG-DELIVERY ; IONIC LIQUID ; SEPARATION ; HYDROGEN ; SEAWATER ; ADSORPTION ; BINDING |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000393759900029 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176797 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Li, Shoujian; Ma, Lijian; Tian, Yin |
| 作者单位 | 1.Sichuan Univ, Key Lab Radiat Phys & Technol, Coll Chem, Minist Educ, 29 Wangjiang Rd, Chengdu 610064, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, CAS Key Lab Nucl Radiat & Nucl Energy Tech, Beijing 100049, Peoples R China 3.Southwestern Inst Phys, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Bo,Wang, Lei,Li, Yang,et al. Conversion of supramolecular organic framework to uranyl-organic coordination complex: a new "matrix-free" strategy for highly efficient capture of uranium[J]. Rsc advances,2017,7(15):8985-8993. |
| APA | Li, Bo.,Wang, Lei.,Li, Yang.,Wang, Dongqi.,Wen, Rui.,...&Tian, Yin.(2017).Conversion of supramolecular organic framework to uranyl-organic coordination complex: a new "matrix-free" strategy for highly efficient capture of uranium.Rsc advances,7(15),8985-8993. |
| MLA | Li, Bo,et al."Conversion of supramolecular organic framework to uranyl-organic coordination complex: a new "matrix-free" strategy for highly efficient capture of uranium".Rsc advances 7.15(2017):8985-8993. |
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来源：高能物理研究所
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