纳米α-Al_2O<sub>3</sub>制备中前驱体与洗涤分离的研究

张少明; 何志木; 胡双启; 赵海霞

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纳米α-Al_2O₃制备中前驱体与洗涤分离的研究

化工与环境工程 | 更新时间：2026-09-14

- 纳米α-Al_2O₃制备中前驱体与洗涤分离的研究
- Study on Precursor and Separation in the Preparation Process of α-Al₂O₃ Nano Powder
- 中北大学学报（自然科学版） 2009年30卷第2期页码：171-174
- 作者机构：
  
  1. 中北大学化工与环境学院
  2. 中国建筑技术集团有限公司
- 作者简介：
- 基金信息：
  
  山西省太原市大学生创新创业专项基金资助(08122076)
- DOI：
  中图分类号：
- 纸质出版：2009
- 稿件说明：
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张少明, 何志木, 胡双启, 等. 纳米α-Al_2O₃制备中前驱体与洗涤分离的研究[J]. 中北大学学报（自然科学版）, 2009,30(2):171-174.

张少明, 何志木, 胡双启, et al. Study on Precursor and Separation in the Preparation Process of α-Al₂O₃ Nano Powder[J]. 2009, 30(2): 171-174.
张少明, 何志木, 胡双启, 等. 纳米α-Al_2O₃制备中前驱体与洗涤分离的研究[J]. 中北大学学报（自然科学版）, 2009,30(2):171-174. DOI：

张少明, 何志木, 胡双启, et al. Study on Precursor and Separation in the Preparation Process of α-Al₂O₃ Nano Powder[J]. 2009, 30(2): 171-174. DOI：

摘要

以工业Al(OH)3为原料

用沉淀法制备纳米Al2O3粉体.探讨了制备过程中前驱体表面电位ζ与洗涤分离的条件在分离过程中对过滤速度的影响

发现采用去离子水洗涤后

粉体的ζ电位明显降低

接近其等电点

从而导致洗涤速度变慢.使用0.1 mol/L稀氨水取代蒸馏水

随着pH值的增大

ζ电位提高

过滤速度加快.取得了适宜的工艺条件.用X射线衍射仪(XRD)、透射电镜(TEM)和粒径分析仪

对实验所得粉末的结构进行了表征.结果表明:所得粉体粒径为59.3 nm的α-Al2O3

形貌为纤维状

并且分散好、粒径均匀.

Abstract

With industrial Al(OH)3 as the raw material

preparing nanometre α-Al2O3 powders by precipitation method

it was investigated that the influence of ζ surface potential of the precursor and the separation condition of gel aluminum hydroxide on the speed of the filtration in the process of separation.And it was found that

by the adoption of distilled water

the ζ potential of the powder was obviously decreased close to its isoelectric point to make the filter velocity slower.When the 0.1 mol/L ammonia was used to take the place of distilled water

pH value and ζ potential were increased

and the filter velocity becomes quicker as well.Thus the favorable technical condition was obtained.Then TEM and XRD were used to characterize the powder's particle shape and size distribution.Results show that the powders obtained is fibrous

dispersive and epigranular α-Al2O3

whose average particle diameter is 59.3 nm.

关键词

Keywords

references

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纳米α-Al_2O3制备中前驱体与洗涤分离的研究

Study on Precursor and Separation in the Preparation Process of α-Al2O3 Nano Powder

DOI：

摘要

Abstract

关键词

Keywords

references

纳米α-Al_2O₃制备中前驱体与洗涤分离的研究

Study on Precursor and Separation in the Preparation Process of α-Al₂O₃ Nano Powder