物理化学学报 >> 1991, Vol. 7 >> Issue (06): 699-702.doi: 10.3866/PKU.WHXB19910612

研究简报 上一篇    下一篇

均分散胶体的研究 III. 均分散Fe2O3粒子的制备

王光信; 陈宗淇; 张玉苓; 殷世刚   

  1. 青岛化工学院应用化学系,青岛 266042
  • 收稿日期:1990-05-09 修回日期:1990-10-28 发布日期:1991-12-15
  • 通讯作者: 王光信

Study on Monodispersed Colloid III. Preparation of Monodispersed Particles of Fe2O3

Wang Guang-Xin; Chen Zong-Qi; Zhang Yu-Ling; Yin Shi-Gang   

  1. Department of Applied Chemistry, Qingdao Institute of Chemical Technology, Qingdao 266042
  • Received:1990-05-09 Revised:1990-10-28 Published:1991-12-15
  • Contact: Wang Guang-Xin

关键词: Fe2O3, 均分散粒子, 制备

Abstract: Spindal, star-shaped and bipyramidal monodispersed particles of Fe_2O_3 were prepared from solutions of Fe(NO_3)_3 by using the simplified procedures under general experimental conditions.The concentration and pH domains for the preparation of these monodispersed systems have been given. One of the important factors which affect the shape of pricipited particles formed at elevated temperature is pH value in the initial solution. The transformation of particles in various shapes were observed by using an electron microscope. The obtained results will be helpfull to preparation in a large scale and practical application of the monodispersed systems.

Key words: Fe2O3, Monodispersed particle, Preparation