| 纳米零价铁的制备技术及其应用研究进展 |
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| 引用本文： | 雍晓静,关翀,张昊,金政伟,姚敏.纳米零价铁的制备技术及其应用研究进展[J].环境工程,2020,38(9):14-22. |
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| 作者姓名： | 雍晓静 关翀 张昊 金政伟 姚敏 |
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| 作者单位： | 1. 国能集团宁夏煤业有限责任公司煤炭化学工业技术研究院, 银川 750001; |
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| 基金项目： | 宁夏回族自治区重点研发计划一般科技项目 |
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| 摘 要： | 纳米零价铁（nZVI）因具有还原性强、粒径小、比表面积大等特性，对重金属及含卤有机污染物等具有良好的吸附特性和反应活性，在环境修复方面表现出较好的应用前景。但nZVI易氧化、团聚和机械强度低等不利因素限制了其大规模应用。系统比较了机械法、气体冷凝法及还原法制备nZVI技术的特点，重点总结表面改性、金属改性、载体负载和基质封装等手段制备改性nZVI的研究进展，及其在水体及土壤环境修复方面的应用。
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| 关 键 词： | 纳米零价铁 制备 改性 |
| 收稿时间： | 2019-07-09 |
RESEARCH PROGRESS IN PREPARATION TECHNOLOGY AND APPLICATION OF NANO-ZERO-VALENT IRON |
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| YONG Xiao-jing,GUAN Chong,ZHANG Hao,JIN Zheng-wei,YAO Min.RESEARCH PROGRESS IN PREPARATION TECHNOLOGY AND APPLICATION OF NANO-ZERO-VALENT IRON[J].Environmental Engineering,2020,38(9):14-22. |
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| Authors: | YONG Xiao-jing GUAN Chong ZHANG Hao JIN Zheng-wei YAO Min |
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| Affiliation: | 1. Institute of Coal Chemical Industry Technology of Ningxia Coal Industry Co., Ltd, China National Energy Group, Yinchuan 750001, China;2. College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750001, China |
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| Abstract: | Nano-zero-valent iron (nZVI) has good adsorption properties and reactivity for heavy metals and halogen-containing organic pollutants, due to its strong reducibility, small particle size and large specific surface area. It has good application prospects in environmental remediation. However, the large-scale application of nZVI is limited by its easy oxidation, agglomeration and low mechanical strength. This paper systematically compared the characteristics of mechanical method, gas condensation method and reduction method in preparing nZVI. It mainly summarized the research progress of surface modification, metal modification, carrier loading and matrix encapsulation, as well as their application in water and soil environmental remediation. |
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