摘要
稀土氧化物的纳米化是当今纳米科技研究的热点领域之一。本文采用AOT/正丁醇/环己烷/氯化钬(氢氧化铵)反相微乳液体系制备Ho_(2)O_(3)纳米颗粒,并采用FTIR、XRD、SEM等手段对产物的结构、形貌进行表征。结果表明:产物为立方相的Ho_(2)O_(3),尺寸为50-100nm之间;当AOT与正丁醇质量比为1:1时,颗粒形状最为规则且分散性最好;加液顺序为先水相后油相时,产物主要为片状;沉淀剂浓度增大,颗粒的粒径越小,形状越规则。
The nanocrystallization of rare earth oxides is one of the hot areas of nanotechnology research. In this paper,Ho_(2)O_(3)nanoparticles was prepared by AOT/n-butanol/cyclohexane/holmium chloride(ammonium hydroxide) reverse microemulsion systems. The structure and morphology of the products were characterized by FTIR, XRD, SEM, etc. The results show that the product is cubic Ho_(2)O_(3)with a size of 50-100 nm. When the mass ratio of AOT and n-butanol is 1:1, the particles have the most regular shape and the best dispersibility. When the aqueous phase is added before oil phase, the product is mainly flake. With the increase of the concentration of precipitant, the smaller the particle size is, and the more regular the shape is.
作者
董国桢
何金桂
袁志刚
赵连祥
苏德生
Dong Guozhen;He Jingui;Yuan Zhigang;Zhao Lianxiang;Su Desheng(School of Materials Science and Engineering,Shenyang Ligong University,Liaoning,110159;The Second Military Representative Offi ce of the Military Representative Bureau of the Army Equipment Department in Shenyang,Liaoning,110004;Liaoning Province Ultra-high Power Graphite Electrode Material Professional Technology Innovation Center,Liaoning,118000)
出处
《当代化工研究》
2022年第24期177-179,共3页
Modern Chemical Research
基金
国家自然科学基金委青年科学基金项目“离子液体参与构筑微乳液膜富集分离稀土元素的基础研究”(项目编号:51904192)
国家自然科学基金委面上项目“应用磁性固相萃取技术富集和纯化离子型重稀土元素的界面科学研究”(项目编号:52074082)
辽宁省教育厅基本科研项目(面上项目)“反相微乳液模板法制备纳米稀土氧化物及其机理研究”(项目编号:LJKZ0248)
辽宁省科技厅博士科研启动基金计划项目“离子液体微乳液中单分散纳米中重稀土氧化物的可控制备”(项目编号:2020-BS-155)。
