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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

Fe(OH)3凝胶两步法水热制备均分散针形铁红胶粒

赵建路; 魏雨+; 姜玉敏+   

  1. 石家庄教育学院化学系; 石家庄 050031; +河北师范大学化学系; 石家庄 050016
  • 收稿日期:1997-12-05 修回日期:1998-01-04 出版日期:1998-12-20 网络出版日期:1998-12-20

Preparation of Uniform Acicular Hematite Particles by Two Steps Hydrothermal Method from Fe(OH)3 Gel

ZHAO Jian-Lu; WEI Yu+ JIANG Yu-Min+   

  1. Department of Chemistry; Shijazhuang Education College Shijiazhuang 050031 China; +Department of Chemistry; Hibei Normal University Shijiazhuang 050016 China
  • Received:1997-12-05 Revised:1998-01-04 Published:1998-12-20 Online:1998-12-20

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摘要： 本文以Fe（OH）3凝胶为初始物，研究了成核温度、pH值以及Sn4+离子对水热合成针形α－Fe2O3粒子形貌的影响．实验证明，一定浓度的Fe（OH）3凝胶先在50～80℃成核，而后加入晶体成长剂，并调节pH值后入釜在150～170℃，短时间可转化为均匀针形α－Fe2O3粒子．解决了实验结果重现性差这一关键问题．使用TEM及XRD对结果进行了表征．

关键词: 铁红, 针形粒子, 制备, Fe（OH）3

Abstract: Uniform acicular hematite particles were prepared by two steps hydrothermal method from Fe(OH)3 gel. The effect of nucleating temperature,
pH and Sn4+ ions on the morphologies of hematite particles was studied. The experiments showed that uniform acicular particles can be obtained. First
the suspension of Fe(OH)3 aged at 50～80℃ for 2h, crystal growing agent was then added, and put into a stainless steel autoclave with
stirring at 150～170℃ for 1.5h. The key problem of the poor repeatability of experimental result was solved. The results were characterized
by TEM and XRD.

Key words: hematite, acicular particles, preparation, Fe(OH)3

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