Journal of Inorganic Materials

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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

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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