基本信息:
- 专利标题： 一种制备单分散四氧化三铁磁性纳米粒子的方法
- 专利标题（英）：Method for preparing monodispersed ferroferric oxide magnetic nanoparticles
- 申请号：CN201910793602.X 申请日：2019-08-27
- 公开(公告)号：CN110451580A 公开(公告)日：2019-11-15
- 发明人： 许家胜 , 张特 , 张杰 , 陆思琦 , 邢锦娟 , 李君华 , 鄂涛 , 杨姝宜 , 唐克
- 申请人： 渤海大学
- 申请人地址： 辽宁省锦州市松山新区科技路19号
- 专利权人： 渤海大学
- 当前专利权人： 渤海大学
- 当前专利权人地址： 辽宁省锦州市松山新区科技路19号
- 代理机构： 沈阳亚泰专利商标代理有限公司
- 代理人： 郭元艺
- 主分类号： C01G49/08
- IPC分类号： C01G49/08 ; H01F1/00 ; H01F41/00 ; B82Y30/00 ; B82Y40/00
The invention belongs to the technical field of preparation technology of inorganic nanomaterials, and particularly relates to a method for preparing monodispersed ferroferric oxide magnetic nanoparticles. The method comprises steps of firstly fully dissolving ferric acetylacetonate, disodium ethylenediamine tetraacetate and sodium acetate trihydrate in a mixed alcohol solution, conducting solvothermal reaction, ultrasonic washing and magnetic separation, and then conducting vacuum drying to obtain the target product. The monodispersed ferroferric oxide magnetic nanoparticles prepared by the invention are pellets with very uniform size, very narrow distribution of granularity and normal distribution of particle diameter showing 90% particles distributed within 25 +/-5 nm. The ferroferric oxide particles have high density of surface charges, a carboxyl modified surface, good dispersibility of an aqueous solution and wide application in a research field of magnetic separation and enrichment and recovery technology.