Adsorption of U(VI) on montmorillonite pillared with hydroxy-aluminum
Adsorption of U(VI) on montmorillonite pillared with hydroxy-aluminum
复制标题
羟基铝柱撑蒙脱土对 U(VI) 的吸附
DOI：
10.1007/s10967-018-5913-2
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发表时间：
2018
影响因子：
1.6
通讯作者：
Liu Yunhai
中科院分区：
文献类型：
--
作者：
Wang Youqun;Zheng Zhiyang;Zhao Yikang;Huang Jian-hui;Zhang Zhibin;Cao Xiaohong;Dai Ying;Hua Rong;Liu Yunhai
制备羟基铝柱钠蒙脱土（OH-Al-MT）用于研究在可溶性钙（Ca2+）、碳酸根离子（CO32−）和腐殖酸存在下对U（VI）的吸附。各种表征证实羟基铝成功地柱化到钠蒙脱石（Na-MT）中。通过批量实验研究了 pH、Ca2+ 和 CO32− 浓度以及 HA 对 Na-MT 和 OH-Al-MT 对 U(VI) 吸附能力的影响。此外，还详细讨论了U(VI)吸附的动力学、等温线和热力学。研究表明，OH-Al-MT 可能是一种有前景的低成本吸附剂，用于去除废水中的 U(VI)。
Hydroxy-aluminum pillared Na-montmorillonite(OH–Al-MT) was prepared for studying sorption of U(VI) in the existence of soluble calcium (Ca2+), carbonate ion (CO32−) and humic acid. Various characterizations confirm that hydroxy-aluminum was successfully pillared into Na-montmorillonite (Na-MT). The effects of pH, concentration of Ca2+and CO32−as well as HA on the sorption capacity of Na-MT and OH–Al-MT for U(VI) has been investigated by batch experiments. Additionally, the kinetics, isotherms and thermodynamics of adsorption of U(VI) were discussed in detailed. The study indicates that OH–Al-MT can be a potentially promising low-cost adsorbent for removal of U(VI) in wastewaters.