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| Progress in preparation and modification of nano zero valent iron |
| LI Chengwei，LIU Qian，LIU Shuai，LIU Hongwei |
| School of Materials Science and Metallurgy，University of Science and Technology Liaoning，Anshan 114051，
China |
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Abstract Nano zero-valent iron（nZVI）has the characteristics of small particle size，large specific surface area，
and strong reducibility. It has good adsorption and reduction effects on heavy metals and organic pollutants，and
shows good environmental remediation capabilities. However，nZVI has the problem of easy oxidation and agglomeration
when using it，which limits its application. This article briefly introduces several commonly used preparation
methods and modification methods of nZVI，and looks forward to the future research directions of nZVI.
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Received: 24 September 2020
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Corresponding Authors:
刘谦（1996—），男，硕士，主要研究方向为金属纳米粉体在环境保护领域的应用。
E-mail: 605502708@qq.com
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2020, Vol. 30 
