Simultaneous sequestration of uranyl and arsenate at the goethite/water interface

Simultaneous sequestration of uranyl and arsenate at the goethite/water interface
复制标题

在针铁矿/水界面同时封存铀酰和砷酸盐

DOI:
10.1007/s10967-016-5086-9
复制
发表时间:
2016
影响因子:
1.6
通讯作者:
Shuao Wang
Shuao Wang
中科院分区:
化学4区
文献类型:
--
作者:
Lanhua Chen;Yue Lang;Xiangke Wang;Shuao Wang

文献摘要

参考文献

被引文献

相似文献

这项研究突出了同时封存U(VI)和砷酸盐在针铁矿/水界面。这两种组分的吸收趋势和形态与砷酸根/U(VI)摩尔比、溶液pH、接触顺序和老化时间有关。3天后观察到亚稳态[UO 2(H2 AsO 4)2·H2O],7天后该固体完全转化为Na 2(UO 2AsO 4)2·3 H2O。乙二胺四乙酸二钠的加入使Na 2(UO 2AsO 4)2·3 H2O相完全溶解,并使U(VI)和砷酸根释放回溶液中。实验结果有助于我们更好地理解共存的U(VI)和砷酸盐在水环境中的迁移和归宿。
This study highlights the simultaneous sequestration of U(VI) and arsenate at the goethite/water interface. The uptake trends and speciation of these two components were related with molar arsenate/U(VI) ratio, solution pH, contact order and aging time. A metastable [UO2(H2AsO4)2·H2O] was observed after 3 days and then this solid completely transformed into Na2(UO2AsO4)2·3H2O after 7 days. The disodium ethylenediamine tetraacetate ligand gave rise to the complete dissolution of Na2(UO2AsO4)2·3H2O phase and the release of U(VI) and arsenate back into the solution. The experimental findings facilitated us better comprehend the migration and fate of coexisting U(VI) and arsenate in the aquatic environment.
DOI: 10.1021/ie0498044
发表时间: 2004-10
影响因子: 4.2
作者:
L. Lv;G. Tsoi;X. Zhao
通讯作者: L. Lv;G. Tsoi;X. Zhao
DOI: 10.1016/j.cej.2007.10.020
发表时间: 2008-07
影响因子: 15.1
作者:
S. Mustafa;M. I. Zaman;Sadullah Khan
通讯作者: S. Mustafa;M. I. Zaman;Sadullah Khan
DOI: 10.1023/a:1005296312509
发表时间: 2001-01-01
影响因子: 2.9
作者:
Nowack, B;Kari, FG;Krüger, HG
通讯作者: Krüger, HG
DOI: 10.1021/es300729m
发表时间: 2012-12-18
影响因子: 11.4
作者:
Carabante, Ivan;Grahn, Mattias;Hedlund, Jonas
通讯作者: Hedlund, Jonas
DOI: 10.1080/02772249709358400
发表时间: 1997
影响因子: 1.8
作者:
Kuang-Chung Yu;S. Ho;Jingjie Chang;L. Tsai
通讯作者: Kuang-Chung Yu;S. Ho;Jingjie Chang;L. Tsai