纳米氧化锌粉的表面改性研究

Study on surface modification of nano-ZnO powders

以Zn(NO3)2·6H2O和CO(NH2)2为原料,采用均相沉淀法制备纳米氧化锌粉.用扫描电镜对产物粒度大小、形貌进行观察,并对其影响因素进行了探讨.结果表明,在反应温度为120℃,反应时间为2.5h时,所制的纳米氧化锌的产率最大.用不同的表面改性剂对纳米ZnO进行表面改性,粉体不再发生团聚.图6,表7,参5.

Using Zn(NO3)26H2O and CO(NH2)2 as raw materials,nanoZnO particles were prepared by using a homogeneous precipitation method. Size and morphology of nanoZnO powders were investigated by means of SEM, and the factors effecting their properties were discussed. The results indicated the efficiency of production reached the maximum at temperature 120 ℃ for 2.5 h. The nanoZnO powders were modified by different surface active agents, so that the particles were not agglomerated.6figs.,7tabs.,5refs.