以二水乙酸锌与六次亚甲基四胺(HMTA)为前驱体,利用水浴加热与不同频率微波加热水解合成纳米ZnO,并用X射线衍射与扫描电镜初步研究了ZnO的晶体结构与生长习性.结果表明,微波与极性分子的偶极极化作用显著改变了ZnO晶体各晶面的生长速度.水浴加热合成的ZnO呈团絮状的羽毛状,而微波加热条件下水解合成的纳米ZnO呈腰鼓型的空心正六棱柱,随着反应时间的延长,腰鼓型的空心正六棱柱逐渐生长成腰鼓型的实心正六棱柱.微波频率大小对ZnO晶体的生长习性无明显影响.%Nano-ZnO was prepared by using water-bath hydrolysis and microwave hydrolysis with different frequency,using Zn (CH3COO)2 and HMTA as the starting materials.The crystal structure and growth habit of ZnO were characterized by XRD and SEM.The results show that the dipole polarization of the microwave with polar molecules significantly changes the growth rate of each crystal surface of the ZnO crystal.Nano-ZnO synthesized by water-bath heating displays a flocculent feather-like shape,while the Nano-ZnO synthesized by microwave heating presents a hollow hexagonal prism.The hollow hexagonal prism grows into solid hexagonal prism with the prolonging of the reaction time.The microwave frequency has no obvious effect on the growth habit of ZnO crystal.
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