均匀沉淀法制备不同粒径的纳米MgO.pdfVIP

学兔兔 第 24卷 第3期 粉末冶金工业 Vbl_24 No．3 2014年6月 POWDER METALLURGY INDUSTRY Jun．2014 均匀沉淀法制备不同粒径的纳米MgO 温艳珍 ，薛永强 ，崔子祥 ，高 晟 (1．太原理工大学应用化学系，山西太原030024：2．太原科技大学化学与生物工程学院，山西太原030026) 摘 要：以MgC1：为镁源，尿素为沉淀剂，聚乙二醇为分散剂，用均匀沉淀法制备纳米MgO，并对其进行纯度、 XRD和TEM表征。通过单因素试验和正交试验研究制各不同粒径的纳米MgO的影响因素。结果表明：控制 适宜的煅烧温度、MgC1：浓度、反应物配比、反应时间和分散剂用量，可以制备出不同粒径的纳米Mg0粉末。 关键词：纳米MgO；粒径；均匀沉淀；制备 文献标志码：A 文章编号：1006 6543(2014)03—0001．06 Study on Preparation of Nano-Sized Magnesium Oxide With Different Particle Size WEN Yan-zhen ，XUE Yong—qiang ，CUI Zi．xiang ，GAO Sheng (1．Department ofApplied Chemistry,Taiyuan University ofTechnology,Taiyuan 030024，China； 2．School of Chemical and Biological Engineering，Taiyuan University of Science and Technology,Taiyuan 030026，China) Abstract：Nano-·sized magnesium oxide(nano—MgO)was prepared with homogeneous precipitation method by tak-· ing magnesium chloride as source of magnesium，urea as precipitator，polyethylene glycol as dispersant agent．The purity of the nano—MgO powder was measured and the powder was characterized by XRD and TEM．Single factor experiments and orthogonal experiments were carded out to study the effect of influencing factors on particle size of nano—MgO．The results show that the nano-sized magnesium oxide with different particle size can be obtained by controlling the calcination temperature，the concentration of magnesium chlorid