College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China.
College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China.
Environ Res. 2020 Sep;188:109855. doi: 10.1016/j.envres.2020.109855. Epub 2020 Jun 27.
Owing to high surface energy, strong chemical reactivity and large surface area, nanoscale zero-valent iron (nZVI) as a novel emerging material has been extensively utilized in environmental cleanup. Although a lot of reviews regarding the removal of organic contaminants and heavy metals on nZVI are summarized in recent years, the advanced progress concerning the removal of radionuclides on nZVI is still scarce. In this review, we summarized the removal of technetium (Tc), uranium (U), selenium (Se) and other radionuclides on nZVI and nZVI-based composites, then their interaction mechanisms were reviewed in details. This review is crucial for the environmental chemist and material engineer to exploit the actual application of nZVI-based composites as the emerging materials of permeable reactive barrier on the removal of radionuclides from aqueous solutions.
由于具有高表面能、强化学反应性和大表面积，纳米零价铁（nZVI）作为一种新型的新兴材料，已广泛应用于环境清理中。尽管近年来已经对 nZVI 去除有机污染物和重金属的情况进行了大量综述，但关于 nZVI 去除放射性核素的先进进展仍然很少。在这篇综述中，我们总结了 nZVI 和基于 nZVI 的复合材料去除锝（Tc）、铀（U）、硒（Se）和其他放射性核素的情况，然后详细回顾了它们的相互作用机制。这篇综述对于环境化学家和材料工程师来说非常重要，因为它可以利用基于 nZVI 的复合材料作为新兴的渗透反应性屏障材料，从水溶液中去除放射性核素的实际应用。
