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应用科学学报 ›› 1997, Vol. 15 ›› Issue (4): 494-498.

• 论文 • 上一篇    

均分散纺锤形α-Fe2O3的制备研究

魏雨, 贺会兰, 郑学忠, 刘晓林   

  1. 河北师范大学
  • 收稿日期:1996-04-29 修回日期:1996-09-06 出版日期:1997-12-31 发布日期:1997-12-31
  • 作者简介:魏雨:副教授,河北师范大学化学系,石家庄 050016

A STUDY OF THE PREPARATION OF MONODISPERSED SPINDLE HEMATITE

WEI YU, HE HUILAN, ZHENG XUEZHONG, LIU XIAOLIN   

  1. Department of Chemisty, Hebei Normal University, Shijiazhuang, 050016
  • Received:1996-04-29 Revised:1996-09-06 Online:1997-12-31 Published:1997-12-31

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摘要： 用沸腾回流的强迫水解法制备了纺锤形均一的α-Fe2O3粒子.系统地研究了不同晶体助长剂及浓度对沉淀粒子晶貌的影响,用TEM和XRD对粒子的形态和组成进行了表征.讨论了均匀纺锤形α-Fe2O3粒子的形成机理.

关键词: α-Fe2O3, 纺锤形粒子, Fe(NO3)3制备

Abstract: The spindle monodispersed hematite particles were prepared by forced hy drolysis in boiling refluex state from Fe(NO3)3 solution for 70h. The influcence of modifers and their concentration on the size and morphology of the particles were studied.The morphology and composition were characterized by TEM and XRD. The mechanism of formation of spindle α-Fe2O3 was discussed.

Key words: spindle particle, α-Fe2O3, Fe(NO3)3 preparation