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环境友好型材料的合成已成为当前研究的热点.纳米零价铁因卓越还原性能应用潜力巨大,纳米铁颗粒的绿色合成技术可避免污染并降低成本,提高修复效率.本文介绍了纳米铁合成工艺的绿色化进展,其中包括采用各类原始材料新型合成方法、合成工艺条件选择和制备产物的生成过程,经济性分析等.另外还比较了纳米铁颗粒绿色分散和负载改性过程中工艺试验参数、收率和选择性等,并对绿色纳米零价铁技术的工程应用和关键问题进行讨论,以及未来发展趋势进行展望.
The synthesis of environment-friendly materials has become the hotspot of current research.Nano-sized zero-valent iron has great potential for application due to its excellent reduction performance, and the green synthesis technology of nano-iron particles can avoid pollution and reduce the cost and improve the efficiency of the repairing.In this paper, Including the new synthetic methods using various types of raw materials, the selection of synthetic process conditions and the production process of the prepared products, economic analysis, etc. In addition, the process parameters of green dispersion and load modification of nano-iron particles were also compared , Yield and selectivity, and discusses the engineering applications and key issues of green nano-zero-valent iron technology, as well as the prospect of future development trends.