磁性纳米颗粒研究得到广泛关注,本文采用聚甲基丙烯酸甲酯,并利用红外吸收光谱和原子力显微镜对其进行表征。铁离子被丙烯酸中的羧酸吸附,利用强还原剂硼氢化钠还原可以制备得到铁磁性纳米粒子。本文介绍了一种简单的方法制备可控的铁磁性纳米颗粒。 Magnetic nanoparticle research has received widespread attention. In this paper, polymethylmethacrylate is used and characterized by infrared absorption spectroscopy and atomic force microscopy. Ferric ions are adsorbed by carboxylic acids in acrylic acid, and ferric nanoparticles can be prepared by reduction with sodium borohydride as a strong reducing agent. This article describes a simple method for the preparation of controlled ferromagnetic nanoparticles.