Synthesis of 伪-aminophosphonate based sorbents 鈥?Influence of inserted groups (carboxylic vs. amine) on uranyl sorption
文献类型：期刊论文
| 作者 | Rashad, Marwa M.1; El-Sayed, Ibrahim E.3; Galhoum, Ahmed A.1; Abdeen, Marwa M.4; Mira, Hamed I.1; Elshehy, Emad A.1; Zhang, Suojiang2,5; Lu, Xingmei2,5; Xin, Jiayu2,5; Guibal, Eric6 |
| 刊名 | Chemical Engineering Journal
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 421 |
| ISSN号 | 13858947 |
| 关键词 | Aniline - Isotherms - Resins - Sorbents - Uranium compounds |
| DOI | 10.1016/j.cej.2020.127830 |
| 英文摘要 | A one-pot synthesis procedure is designed for preparing three 伪-aminophosphonates (R-H, R-COOH, and R-NH2); through the reaction of amine precursors (aniline, anthranilic or o-phenylene diamine, respectively) with salicylaldehyde and triphenylphosphite, under controlled conditions. These materials are first characterized by elemental analysis, FTIR, 1H NMR, 31P NMR, BET, DLS, pHzpc, TGA and titration. In a second step, the sorption properties are compared for U(VI) recovery from mildly acidic solutions. At the optimum pH (i.e., pH 4) the sorbents can be ranked according the series: R-H (1.057 mmol U g鈭?) > R-NH2 (0.746 mmol U g鈭?) > R-COOH (0.533 mmol U g鈭?). The isotherms are fitted by the Langmuir equation. Uranium uptake is relatively fast: under selected experimental conditions, the equilibrium is reached within 90 min of contact. The kinetic profiles are indistinctly fitted by the model of resistance to intraparticle diffusion and the pseudo-first order rate equation. The study of sorption thermodynamics shows substantial changes between the sorbents: uranyl uptake is endothermic with R-H and R-NH2 sorbents, while the reaction is exothermic with R-COOH sorbent. The diversity in functional groups and the speciation of uranyl in sulfuric acid solutions induce metal-binding through a combination of chelation and anion-exchange mechanisms (in function of pH). Sodium bicarbonate solutions achieve complete desorption of uranium from loaded-sorbents; the resins can be recycled for a minimum of 4鈥? cycles with limited loss in efficiencies. The successful application of these resins for uranium recovery from acidic ore leachates demonstrates their promising properties for valorization of low-grade ores. 漏 2020 Elsevier B.V. |
| 学科主题 | Desorption |
| 项目编号 | This work was financially supported by Nuclear Materials Authority (Egypt), Institut Franç ; ais d&rsquo ; Egypte (Ministè ; re des Affaires Etrangè ; res, MAE), and Ministè ; re de l&rsquo ; Enseignement Supé ; rieur et de la Recherche, MESR), Chinese Academy of Sciences President&rsquo ; s International Fellowship Initiative (Grant No. 122111WGZJTPYJY20180050), CAS-TWAS Centre of Excellence, Innovation Academy for Green Manufacture, Chinese Academy of Sciences (IAGM-2019-A06) and National Natural Science Foundation of China (Nos. 21878314, 21878292). Authors thank Dr. Mai S. Maiz, (Faculty of Science, Menoufia Univ., Egypt) for her technical support. Special dedication to the memory of Prof. Ahmed Donia. |
| 出版者 | Elsevier B.V. |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60284]  |
| 作者单位 | 1.Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt 2.Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 3.Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt 4.Higher Institute of Engineering and Technology, HIET, Menofia, Egypt 5.Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green, Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 6.Institut Mines Telecom 鈥?Mines Al猫s, C2MA, Univ. Montpellier, 6 Avenue de Clavi猫res, Al猫s Cedex; F-30319, France |
| 推荐引用方式 GB/T 7714 | Rashad, Marwa M.,El-Sayed, Ibrahim E.,Galhoum, Ahmed A.,等. Synthesis of 伪-aminophosphonate based sorbents 鈥?Influence of inserted groups (carboxylic vs. amine) on uranyl sorption[J]. Chemical Engineering Journal,2021,421. |
| APA | Rashad, Marwa M..,El-Sayed, Ibrahim E..,Galhoum, Ahmed A..,Abdeen, Marwa M..,Mira, Hamed I..,...&Guibal, Eric.(2021).Synthesis of 伪-aminophosphonate based sorbents 鈥?Influence of inserted groups (carboxylic vs. amine) on uranyl sorption.Chemical Engineering Journal,421. |
| MLA | Rashad, Marwa M.,et al."Synthesis of 伪-aminophosphonate based sorbents 鈥?Influence of inserted groups (carboxylic vs. amine) on uranyl sorption".Chemical Engineering Journal 421(2021). |
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