铀
吸附
水溶液
化学
人体净化
核化学
X射线光电子能谱
金属
无机化学
化学工程
材料科学
冶金
有机化学
废物管理
工程类
作者
Jian Hong Li,Yang Li,Wen Yin,Yuan Tao,Hui Wu,Feng Luo
标识
DOI:10.1016/j.jssc.2018.09.013
摘要
Uranium is the most radioactive element using in the nuclear industry and nuclear technology application. However, it is harmful for environment and human health due to its high toxicity and mobility. Thus designing effective material for uranium removal is highly desirable. In this paper, a novel adsorbent of [email protected] prepared by anchoring nZVI on Zn-MOF-74 was investigated for the removal of uranium from aqueous solutions. Impressively, nZVI was synthesized for the first time by a spraying approach in a simple and convenient manner. The experimental results indicated that [email protected] can significantly enhance the removal of U(VI) than both Zn-MOF-74 material and nZVI, leading to high adsorption capacity up to 348 mg/g at pH = 3 and 298 K. The origin, as unveiled by XPS, is due to both U(VI) adsorption from Zn-MOF-74 and U(VI)-to-U(IV) reduction by nZVI.
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