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Insights into the Synthesis, types and application of iron Nanoparticles: The overlooked significance of environmental effects
Environment International ( IF 11.8 ) Pub Date : 2021-11-16 , DOI: 10.1016/j.envint.2021.106980
Weihua Xu 1, 2 , Ting Yang 1, 2 , Shaobo Liu 3 , Li Du 1, 2 , Qiang Chen 1, 2 , Xin Li 1, 2 , Jie Dong 1, 2 , Zhuang Zhang 1, 2 , Sihui Lu 1, 2 , Youzi Gong 1, 2 , Liang Zhou 1, 2 , Yunguo Liu 1, 2 , Xiaofei Tan 1, 2
Affiliation  

Two decades ago, iron nanoparticles have been widely studied in environmental protection due to their particular characters. Compared with traditional absorbents, iron nanoparticles not only have higher specific surface area, but also can oxidize and reduce multiple pollutants. Iron nanoparticles have been employed for the remediation of organic and inorganic pollutants in polluted water, soil and sediments. With in-depth research, various modified iron nanoparticles have been prepared to further overcome the original defects of aggregation or oxidation, and improve the reaction efficiency. Based on the properties of iron-based nanoparticles, this review summarizes different synthesis methods of iron nanoparticles and the removal mechanism of various pollutants. We also systematically classified the unstable and stable iron nanoparticles. At present, stable iron nanoparticles are possible to overcome the aggregation and retention of bare iron nanoparticles so as to achieve higher efficiency for the removal of pollutants. The application of iron nanoparticles in environmental remediation has significant effect on the environmental pH value, the pollutant morphology and the toxicity to microorganisms. Subsequently, some suggestions and conclusions are put forward for the application of iron nanoparticles.



中文翻译:

洞察铁纳米粒子的合成、类型和应用:环境效应被忽视的重要性

二十年前,铁纳米粒子由于其特殊的特性在环境保护中得到了广泛的研究。与传统吸收剂相比,铁纳米粒子不仅具有更高的比表面积,而且可以氧化和还原多种污染物。铁纳米粒子已被用于修复受污染的水、土壤和沉积物中的有机和无机污染物。通过深入研究,制备了各种改性铁纳米粒子,进一步克服了原有的聚集或氧化缺陷,提高了反应效率。本综述基于铁基纳米粒子的性质,总结了铁纳米粒子的不同合成方法以及对各种污染物的去除机理。我们还系统地对不稳定和稳定的铁纳米粒子进行了分类。目前,稳定的铁纳米颗粒有可能克服裸铁纳米颗粒的聚集和滞留,从而实现更高的污染物去除效率。纳米铁在环境修复中的应用对环境pH值、污染物形态和对微生物的毒性有显着影响。随后,对铁纳米粒子的应用提出了一些建议和结论。

更新日期:2021-11-16
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