A review on removal of uranium(VI) ions using titanium dioxide based sorbents
A review on removal of uranium(VI) ions using titanium dioxide based sorbents
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DOI：
10.1016/j.molliq.2019.111563
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发表时间：
2019-11
影响因子：
6
通讯作者：
T. Tatarchuk;A. Shyichuk;I. Mironyuk;M. Naushad
中科院分区：
文献类型：
--
作者：
T. Tatarchuk;A. Shyichuk;I. Mironyuk;M. Naushad
本文综述了二氧化钛基吸附剂对铀（VI）的吸附行为。由于铀化合物的长期毒性，地下水、土壤和岩石的铀污染是一个大问题。废铀是生产原子能所用浓缩过程的副产品，与此相关的危险是由于铀的放射性及其作为重金属的毒性。本文介绍了二氧化钛吸附剂对铀的吸附机理，它取决于不同的环境条件以及吸附动力学。讨论了吸附剂的结构特征对铀吸附行为的影响。综述了二氧化钛的表面化学和吸附性能。介绍了新型纳米分散吸附剂的应用实例，并给出了吸附等温线参数。这一分析审查的实际任务之一是获得信息的建模行为的铀在水/吸附剂系统由于人为污染。
This review is devoted to the study of the adsorption behavior of uranium(VI) using titanium dioxide based sorbents. Uranium pollution of groundwater, soil and rocks is a big problem due to the long-term toxicity of uranium compounds. Waste uranium is a by-product of the enrichment process used in the production of atomic energy, and the danger associated with this is due to the radioactivity of uranium and its toxicity as a heavy metal. The mechanisms of uranium adsorption by titania adsorbents are presented here, depending on the various environmental conditions, as well as the kinetics of adsorption. The influence of the structural characteristics of the sorbents on the adsorption behavior of uranium is depicted. Surface chemistry and sorption activity of titanium dioxide were reviewed. Examples of new advanced sorbents with nanometer dispersion are described and the parameters of adsorption isotherms are also presented. One of the practical tasks of this analytical review is to obtain information for modeling the behavior of uranium in the water/adsorbent system due to anthropogenic pollution.