纳米零价铁在水处理中的应用研究综述

纳米零价铁(nZVI)作为最常用的纳米颗粒之一,在去除环境水体中的污染物方面开展了大量的研究。本篇综述通过系统全面地总结nZVI的相关进展,介绍nZVI的各个方面进而指导其发展方向。其中,研究内容主要包括制备方法、改性方式、去除不同水中污染物的作用机理和催化机理、在场地研究中的应用以及毒性作用机制。本文发现,纳米零价铁仍存在缺少综合评价方法、应用受限、各项研究不同步等问题。nZVI未来的发展,应具备考虑反应性、稳定性、迁移性、毒性的评价方法,避免同一改性材料在不同研究方向的时间差异性,让nZVI的应用更好地适用实地研究

A review of nano zero valent iron in water treatment

As one of the most commonly used nanoparticles, nano zero valent iron (nZVI) had been extensively studied in the removal of pollutants from environmental water. This review systematically and comprehensively summarized the related progress of nZVI, introduced various aspects of nZVI and then guided its development direction. Among them, the research contents mainly included preparation method, modification method, mechanism of action and catalytic mechanism for removing different pollutants in water, application in site research, and mechanism of toxicity. In this paper, it was found that there were still problems such as lack of comprehensive evaluation methods, limited application, and asynchronous research on nano zero valent iron. The future development of nZVI should have evaluation methods that consider reactivity, stability, mobility, and toxicity, to avoid the time difference of the same modified material in different research directions, so that the application of nZVI can be better applied to field research, and promote the application of nZVI in the field.