环境修复
零价铁
水溶液中的金属离子
环境污染
吸附
材料科学
纳米尺度
金属
环境化学
重金属
流出物
污染
环境科学
废物管理
化学
污染
环境工程
纳米技术
冶金
环境保护
有机化学
工程类
生物
生态学
作者
Yidong Zou,Xiangxue Wang,Ayub Khan,Pengyi Wang,Yunhai Liu,Ahmed Alsaedi,Tasawar Hayat,Xiangke Wang
标识
DOI:10.1021/acs.est.6b01897
摘要
The presence of heavy metals in the industrial effluents has recently been a challenging issue for human health. Efficient removal of heavy metal ions from environment is one of the most important issues from biological and environmental point of view, and many studies have been devoted to investigate the environmental behavior of nanoscale zerovalent iron (NZVI) for the removal of toxic heavy metal ions, present both in the surface and underground wastewater. The aim of this review is to show the excellent removal capacity and environmental remediation of NZVI-based materials for various heavy metal ions. A new look on NZVI-based materials (e.g., modified or matrix-supported NZVI materials) and possible interaction mechanism (e.g., adsorption, reduction and oxidation) and the latest environmental application. The effects of various environmental conditions (e.g., pH, temperature, coexisting oxy-anions and cations) and potential problems for the removal of heavy metal ions on NZVI-based materials with the DFT theoretical calculations and EXAFS technology are discussed. Research shows that NZVI-based materials have satisfactory removal capacities for heavy metal ions and play an important role in the environmental pollution cleanup. Possible improvement of NZVI-based materials and potential areas for future applications in environment remediation are also proposed.
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