WANG Lianlian1,2, TIAN Lei3, WANG Ming4, GUO Yuwei1, ZHANG Lina1
(1. Chemistry Department of Baotou Teachers’ College, Inner Mongolia University of Science and Technology, Baotou 014031, China;2. Baotou Innovation Institute of Peking University, Baotou 014030, China;3. Baotou Rare Earth Research and Development Center, Chinese Academy of Sciences, Baotou 014020, China;4. Baotou Zhongeke Century Science and Technology Co. Ltd, Baotou 014020, China)
Abstract: Direct precipitation method was applied to prepare the precursor of flaky magnesium hydroxide. Then calcination method was employed to obtain cubic nanometer magnesium oxide. In order to optimize experimental conditions, the influencing factors on morphology of precursor and magnesium oxide were discussed. The results show that flaky magnesium hydroxide with better dispersion is obtained when concentration of sodium hydroxide is 0.5 mol/L and concentration of magnesium salt is 0.4 mol/L. Besides, magnesium chloride with higher purity can further improve the crystallinity of magnesium hydroxide, which has petaloid-like morphology with homogeneous dispersion. During the calcination process, cubic nanometer magnesium oxide with better dispersion is obtained when the temperature is controlled at 1 150 ℃.
Keywords: cubic nanometer magnesium oxide；magnesium hydroxide；direct precipitation method；calcination method
中图分类号：TQ132.2 文献标志码：A
文章编号：1008-5548(2019)06-0050-06
DOI:10.13732/j.issn.1008-5548.2019.06.009
收稿日期： 2018-11-26，修回日期：2019-01-18，在线出版时间：2019-01-23 10:36。
基金项目：内蒙古自然科学基金博士基金项目，编号：2015BS0203；包头师范学院青年科学研究基金项目，编号：BSYKJ2017-13。
第一作者简介：王连连(1987—)，女，博士，讲师，研究方向为无机纳米材料及发光功能材料。E-mail：wangll0114@163.com。
