棒状和球状氧化锌微晶的控制合成及其表征

Controlled Synthesis and Characterization of ZnO Microcrystals with Rod-like Sphere-like Morphologies by Emulsion-solvothermal Method

以醋酸锌和尿素为主要原料,利用微乳-溶剂热法控制合成了棒状和球状ZnO微晶.用XRD、TEM、FTIR.和SAED等技术手段对两种形状的ZnO微晶进行了表征.结果表明:棒状ZnO微晶的平均尺寸为50nm×320nm,球状ZnO微晶的平均尺寸约为200nm.

ZnO microcrystals with rod-like and sphere-like morphologies were successfully synthesized by a emulsion-solvothermal method using Zn(CH3COO)(2)(.)2H(2)O and CO(NH2)(2) as raw materials and oleic acid and n-hexadecan as solution. The obtained ZnO microcrystals were characterized by XRD, TEM, FTIR and SAED. The rod-like ZnO microcrystals with an average size of 50nm x 3.20nm were prepared when the volume ratio of oleic acid and n-hexadecan was 1:6. The sphere-like ones with an average size of 200nm were obtained when the volume ratio of oleic acid and n-hexadecan was 3:1. The method of this paper is simple, which may be a promising approach for the preparation of oxides with controlled morphologies.