The fate of rhenium in polyaminocarboxy solution: Hourglass crystal and its speciation study.
The fate of rhenium in polyaminocarboxy solution: Hourglass crystal and its speciation study.
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DOI：
10.1016/j.jhazmat.2019.04.059
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发表时间：
2019-08
影响因子：
13.6
通讯作者：
Zhihai Fu;Aidan He;Xiao Min;Mu Ding;Tao Chen;Fuwan Zhai;Shuwen An;Fengfeng Xiao;Jinyang Kang;Jie Ding;Chao Huang;Xiaojie Feng;Yongdong Jin;Chuanqin Xia
中科院分区：
文献类型：
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作者：
Zhihai Fu;Aidan He;Xiao Min;Mu Ding;Tao Chen;Fuwan Zhai;Shuwen An;Fengfeng Xiao;Jinyang Kang;Jie Ding;Chao Huang;Xiaojie Feng;Yongdong Jin;Chuanqin Xia
This paper studied the fate of Re in the presence of polyaminocarboxy ligand (DTPA, EDTA and NTA) under reducing condition. When SnCl2as reducing agent, the results indicated the low valent Re was formed. And batch experiments studied the effect of pH and different ligands on the formation of low valent Re complex, the acid condition was favoured for the formation of low valent Re complex, and the order of complexing toward the low valent Re was the following: DTPA > EDTA > NTA. In the condition of pH = 1, DTPA as ligand, the hourglass crystal was obtained. Using ESI-MS, solid-state UV–Vis–NIR spectra, EXAFS, DFT calculation et al, the darkened patch of the hourglass crystal was demonstrated to be Re, and its speciation was dimeric Re2(μ-O)2DTPA.
