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纳米铁颗粒的制备技术发展迅速,方法多种多样。生物法因其具有原料来源广,反应条件温和,产物纳米级颗粒不易团聚,以及有毒副产物少等特点,成为学者们争相研究的对象。对近几年国内外采用微生物、植物提取物等合成纳米铁材料的方法及机理进行了阐述,综述了纳米铁在环保领域的应用,并对今后深入研究生物法合成纳米铁的前景进行了展望。
The preparation technology of nano-iron particles has developed rapidly, a variety of ways. Because of its biological sources of wide source of raw materials, mild reaction conditions, the product is not easy to agglomerate nano-particles, as well as less toxic by-products, as scholars competing for research. In recent years, the methods and mechanisms of using synthetic nano-iron materials such as microorganisms and plant extracts in China and abroad are described. The application of nano-iron in the field of environmental protection is reviewed. The prospect of biosynthesis of nano-iron in biological methods in the future is also discussed .