沉淀法制备纳米氧化锌的研究

A study on preparation of nanometer-sized zinc oxidevia precipitation method

通过实验和理论分析 ,对均匀沉淀法和直接沉淀法制备纳米 Zn O进行了比较。结果表明 :以硝酸锌为原料、尿素为均匀沉淀剂制得的纳米 Zn O粒径小、分布窄、分散性好 ,收率大体相等 ,远优于直接沉淀法制备的纳米 Zn O。

The comparison of a direct precipitation method (DPM) with a homogeneous precipitation method (HPM) for preparation of nanometer sized zinc oxide is made through discussion in theory and experiment. By using zinc oxide nitrate as the material and urea as the homogeneous precipitate, the particle size of nanometer sized ZnO is much smaller than that by using the direct precipitation method. Moreover, it has a narrow distribution and high dispersion.