多孔炭材料改性纳米零价铁的研究进展

doi:10.16085/j.issn.1000-6613.2021-1639

摘要/Abstract

摘要：

多孔炭材料因其特殊的孔隙结构、较好的化学稳定性及较强的导电性等特性，近年来通过多孔炭材料改性纳米零价铁（nZVI）解决易团聚、迁移距离小、反应性低等问题，成为提高nZVI原位修复污染场地作用效果的研究热点。本文阐述了介孔炭、石墨烯、碳纳米管3种碳材料的特性，分析了多孔炭材料负载对nZVI迁移率、反应活性、选择性和电催化性的影响机理，并结合目前实验室研究到实际污染测试场地的应用实例对改性nZVI未来方向进行展望，指出碳材料载体今后的研究热点是优化多孔炭材料的形貌、表面基团、掺杂其他原子等。

关键词: 纳米零价铁, 多孔炭材料, 反应活性, 迁移率, 选择性, 电催化性, 优化

Abstract:

Porous carbon materials have special pore structure, good chemical stability and strong electrical conductivity. In recent years, nano-zero-valent iron (nZVI) modified by porous carbon materials has solved the problems of easy agglomeration, small migration distance and low reactivity, which has become a research hotspot to improve the effect of nano-zero-valent iron on in-situ remediation of contaminated sites.In this paper, the characteristics of three kinds of carbon materials, namely mesoporous carbon, graphene and carbon nanotubes, are described, and the influence mechanism of porous carbon material loading on the mobility, reactivity, selectivity and electrocatalysis of nano-zero-valent iron is analyzed. The future direction of modified nano-zero-valent iron is prospected with the application examples of actual pollution test sites studied in the laboratory at present, and it is pointed out that the research hotspots of carbon material carriers in the future are: optimizing the morphology, surface groups and doping other atoms of porous carbon materials.

Key words: nZVI, porous carbon materials, reactivity, mobility, selectivity, electrocatalytic property, optimization

中图分类号:

X523

杨妍, 刘国涛, 余庆慧, 李晓娟, 张颖. 多孔炭材料改性纳米零价铁的研究进展[J]. 化工进展, 2021, 40(S2): 198-202.

YANG Yan, LIU Guotao, YU Qinghui, LI Xiaojuan, ZHANG Ying. Research progress of nano-zero-valent iron modified by porous carbon materials[J]. Chemical Industry and Engineering Progress, 2021, 40(S2): 198-202.

参考文献 38

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