关键词: LDHs;单滴法;双滴法;水热处理

Abstract: The dropping methods of metal salt and alkali solution affect the reaction activity of metal ions and then change the growth process of samples.ZnAl-LDHs were prepared by single dropping method and double dropping method, which were characterized by XRD, SEM and FTIR.The effect of dropping method,dropping temperature and heating method on the structure,phase,morphology and size of ZnAl-LDHs were investigated.The experimental results show that double dropping method and water bath heating are in favor of the growth of single phase ZnAl-LDHs sheets.While hydrothermal treating led to the formation of ZnO.

Key words: LDHs;single dropping method;double dropping method;hydrothermal treating