WANG Yong， ZHENG Yansheng， WU Weihong， WU Hongda
（College of Biological and Chemical Engineering， Guangxi University of Science and Technology， Liuzhou 545006， China）
Abstract：Using Y ( NO3) 3 as the yttrium source, NH3 ·H2O as the precipitating agent, sodium dodecyl benzene sulfonate and polyethylene glycol 4000 as the complex matches dispersant, the spherical Y2 O3 powders were prepared by coprecipitation method. The effects of reaction temperature, reaction medium, multiple matches dispersant quality ratio and dosage, reactants molar ratio as well as stirring rate on the particle size of Y2 O3 powders were studied. The experimental results were characterized by laser particle size analyzer, XRD, TEM. The results show that at the conditions that the reaction temperature is about 15 ℃, the mass ratio of sulfonate and polyethylene glycol 4000 is 1 ∶ 3 with the mass fraction of 0.4%, and the reactants molar ratio of NH3 ·H2 O and Y (NO3) 3 is 3∶1, uniformly dispersing Y2 O3 (d50 is 151.99 nm) with narrow particle size distribution can be obtained under rapid stirring rate.
Keywords：yttria; dispersant; coprecipitation method
中图分类号： TB383 文献标志码： A
文章编号：1008-5548（2013）06-0045-04
DOI：10.3969/j.issn.1008-5548.2013.06.011
收稿日期：2013-03-20，修回日期：2013-04-24，在线出版时间：2013-12-25。
基金项目：广西科学研究与技术开发计划课题，编号：桂科技字 09921-11。
第一作者简介：王勇（1986—），男，硕士研究生，研究方向为超细粉体的制备与应用。 E-mail:happywy2008@126.com。
通信作者简介：郑燕升（1964—），男，教授，硕士生导师，研究方向为无机有机功能材料。 E-mail:zhyansh88@163.com。
