化学学报 ›› 2017, Vol. 75 ›› Issue (6): 560-574.DOI: 10.6023/A17010039 上一篇    下一篇

所属专题: 铁环境化学

综述

功能性纳米零价铁的构筑及其对环境放射性核素铀的富集应用研究进展

陈海军a,b, 黄舒怡b, 张志宾a,b, 刘云海a, 王祥科b   

  1. a 东华理工大学 化学生物与材料科学学院 南昌 330013;
    b 华北电力大学 环境科学与工程学院 北京 102206
  • 收稿日期:2017-01-30 出版日期:2017-06-15 发布日期:2017-03-21
  • 通讯作者: 刘云海, 王祥科 E-mail:walton_liu@163.com;xkwang@ncepu.edu.cn
  • 基金资助:

    项目受国家自然科学基金(Nos.91326202,21577032)和挑战计划(No.JCKY2016212A04)资助.

Synthesis of Functional Nanoscale Zero-Valent Iron Composites for the Application of Radioactive Uranium Enrichment from Environment: A Review

Chen Haijuna,b, Huang Shuyib, Zhang Zhibina,b, Liu Yunhaia, Wang Xiangkeb   

  1. a School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013;
    b College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206
  • Received:2017-01-30 Online:2017-06-15 Published:2017-03-21
  • Contact: 10.6023/A17010039 E-mail:walton_liu@163.com;xkwang@ncepu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 91326202, 21577032) and the Science Challenge Project (No. JCKY2016212A04).

随着核能的广泛应用和核技术的快速发展,环境中放射性核素铀的污染日益严峻.纳米零价铁(Nanoscale Zero Valent Iron:nZVI)因其具有廉价、制备简便、高表面活性及对铀高效的吸附性能等特性而逐渐成为环境中铀污染处理的良好材料.采用可行的方法制备纳米零价铁复合材料,借助单体材料之间的协同效应可进一步提高材料对铀酰的吸附性能.因此,纳米零价铁复合材料的制备以及应用成为近期环境科学领域的研究热点之一.针对纳米零价铁及其复合材料对环境中铀酰的去除研究进行了概述和展望,包括纳米零价铁及其复合材料的制备方法、去除效果及去除机理,并且简要探讨了纳米零价铁及其复合材料在环境放射性污染治理的应用前景,以期为今后的深入研究和实际应用提供参考依据.

关键词: 环境污染, 纳米零价铁, 复合材料, 铀, 吸附

With the widespread using of nuclear energy, the nuclear technology is developed rapidly and the radionuclide pollution such as uranium has become the serious problem for human health. Nanoscale Zero-Valent Iron (nZVI) has become the excellent adsorbent for the removal of uranium ions from environment because of its low cost, easy preparation, high surface-activity and excellent performance for adsorption of uranium. Due to synergistic effect of each monomer, the nZVI nanocomposites have been applied to remove radionuclides and the adsorption capacity of nZVI nanocomposites are improved to a further level. Hence, the preparation of nZVI and its nanocomposites for the efficient removal of radionuclides is one of the hot issues in the field of environmental science. The aim of this review is to summarize and outlook the recent research on the application of nZVI nanocomposites for the efficient removal of radioactive uranium from environment. The preparation of nZVI and its composites, the removal efficiency and removal mechanism has been summarized, and the application of the nZVI nanocomposites in environmental pollution cleanup has also been discussed, expecting for the reference of practical application and future research.

Key words: environment pollution, nanoscale zero-valent iron, nanocomposite, uranium, adsorption