气-固相化学反应法制备纳米氧化锌

Preparation of Nanometer-Sized ZnO Particles by Gas-Solid Phase Reaction.

以硫酸锌和碳酸氢铵为原料 ,在 12 0℃条件下反应 ,经洗涤、4 0 0℃煅烧 1h后得到纳米氧化锌。用X 粉末衍射、透射电镜、比表面积、光散射性进行了表征。结果表明纳米氧化锌平均粒晶为 9 5nm ,平均比表面积为 6 8 0 5m2 / g。初步探索了制备过程中反应温度、时间等因素对纳米粒子的大小。

In this work, nanometer sized ZnO particles were prepared by gas solid phase reaction with ZnSO 4 and NH 4HCO 3. The reaction mixture was at 120℃ for 1h, and then the powder washing with water, and heat treated at 600℃ for 1h. The particles were characterized by XRD, TEM, BET and scattering of light. The results indicate that the average size of nanometer sized particles is around 9.5nm, and average surface area is about 60.05m 2/g. The influence of reaction on the synthesizing process and final powder characteristics, such as temperature; time and washing, were investigated.