无机材料学报

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纳米相铁红粒子的液相制备

贾振斌1; 魏雨1; 王洪敏2   

  1. 1. 河北师范大学化学系, 石家庄 050016; 2. 河北省沧州师范专科学校化学系, 沧州 061001
  • 收稿日期:1999-09-07 修回日期:1999-10-26 出版日期:2000-10-20 网络出版日期:2000-10-20

Preparation of Ultrafine Hematite Particles by Microwave Heating of Ferric Salt Solutions

JIA Zhen-Bin1; WEI Yu1; WANG Hong-Min 2   

  1. 1. Department of Chemistry; Hebei Normal University; Shijiazhuang 050016; China; 2. Department of Chemistry; Cangzhou Teachers College; Cangzhou 061001; China
  • Received:1999-09-07 Revised:1999-10-26 Published:2000-10-20 Online:2000-10-20

摘要: 由0.2mol·L-1Fe3+采用微波诱导加热制备了纳米尺寸的准立方形和纺锤形α-Fe粒子,与常规加热方式比较微波加热制得的α-Fe粒子粒径小且分布均匀,实验证明无机离子加 H、OH和 Na等的加入可明显加速反应速率.

关键词: 微波加热, α-Fe2O3, 纳米粒子

Abstract: Nanometer-sized quasicubic and spindle α-Fe2O3 particles were prepared by microwave heating from 0.2mol·L-1Fe3+ salts solution. The obtained α-Fe2O3 particles have smaller sizes and uniform distribution by contrast with conventional heating. Inorganic ions such as H+, OH- and Na+, can obviously affect the precipitating rate of spindle α-Fe2O3 and accelerate the hydrolysis of ferric ions.

Key words: microwave heating, α-Fe2O3, nanoparticles

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