A Self-Assembled Supramolecular Material Containing Phosphoric Acid for Ultrafast and Efficient Capture of Uranium from Acidic Solutions
A Self-Assembled Supramolecular Material Containing Phosphoric Acid for Ultrafast and Efficient Capture of Uranium from Acidic Solutions
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一种含磷酸的自组装超分子材料，用于从酸性溶液中超快速有效地捕获铀
DOI：
10.1021/acssuschemeng.8b04596
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发表时间：
2018-11
影响因子：
8.4
通讯作者：
Xia Chuanqin
中科院分区：
文献类型：
--
作者：
Pan Ning;Jin Yongdong;Wang Xiaoqiang;Hu Xiaoping;Chi Fangting;Zou Hao;Xia Chuanqin
在此，我们报道了一种制备含有磷酸（PM）的自组装超分子材料的简便方法，选择植酸和三聚氰胺作为两种有机构件。首次选择 PM 作为吸附剂，用于从酸性水介质中快速吸附和回收 U(VI)。批量吸附实验表明，PM-9具有非常快的吸附动力学，对酸性水中U(VI)的吸附过程在2 min内达到平衡。在酸性水溶液中获得了 1034.9 mg/g 的相当大的吸附容量和 58.6% 的优异的 U(VI) 选择性。动态柱实验测得吸附容量为251.0 mg·g-1，以Na2CO3为反萃剂时回收率高达99.4%。通过 FT-IR、XRD、SEM、XRF 和 XPS 探讨了吸附机理，表明磷酸的双键氧原子和氨基与铀酰离子络合物的氮原子。
Herein, we report a convenient method for the preparation of a self-assembled supramolecular material containing phosphoric acid (PM) choosing phytic acid and melamine as the two organic building blocks. The PM was chosen as an adsorbent for the first time for the fast adsorption and recovery of U(VI) from acidic aqueous media. The batch adsorption experiments showed that PM-9 possesses a very fast adsorption kinetic with the adsorption process for U(VI) from acidic water reaching equilibrium within 2 min. A considerable adsorption capacity of 1034.9 mg/g and an excellent selectivity 58.6% toward U(VI) in acidic aqueous solution were obtained. The adsorption capacity in dynamic column experiment was determined to be 251.0 mg g–1, with the recovery efficiency as high as 99.4% when using Na2CO3 as a stripping agent. The adsorption mechanism was probed by FT–IR, XRD, SEM, XRF, and XPS, implying the double bond oxygen atom of phosphoric acid and the nitrogen atom of amino group complexes with uranyl ions in t...
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影响因子：
20.6
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
4
作者：
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通讯作者：
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影响因子：
4.6
作者：
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通讯作者：
Chao Liu;Fang-Yuan Chen;Hongrui Tian;Jing Ai;Weiting Yang;Qingjiang Pan;Zhong‐Ming Sun