两种加料方式下ZnAl-LDHs生长机理研究  

Effect of Two Dropping Method on the Growth of ZnAl-LDHs

作　　者：姚佳良[1] 王卫伟[1] 于欢[1] 丛日敏[1] 

机构地区：[1]山东理工大学材料科学与工程学院,淄博255091

出　　处：《硅酸盐通报》2018年第1期321-326,341,共7页Bulletin of the Chinese Ceramic Society

基　　金：山东省自然科学基金(ZR2015BM022);山东省高等学校科技计划项目(J11LD12)

摘　　要：含多种金属离子的盐溶液和碱溶液的滴加混合方式会影响反应过程中金属离子的反应活性,进而改变材料的生长过程。分别采用单滴和双滴加料法制备了Zn Al-LDHs。并利用XRD、SEM、FTIR等手段进行表征。在两种加料方式下,研究了加热方式、滴加温度对样品结构、物相、形貌和尺寸的影响。同时探讨了加料方式对Zn Al-LDHs生长的作用机理。研究结果表明:双滴法加料和水浴加热有利于制备单一物相的Zn Al-LDHs片状结构;水热处理易产生ZnO,不利于制备Zn Al-LDHs。The dropping methods of metal salt and alkali solution affect the reaction activity of metal ions and then change the growth process of samples.Zn Al-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 Zn AlLDHs were investigated.The experimental results show that double dropping method and water bath heating are in favor of the growth of single phase Zn Al-LDHs sheets.While hydrothermal treating led to the formation of ZnO.

关 键 词：LDHS 单滴法 双滴法 水热处理 

分 类 号：O611[理学—无机化学] O614[理学—化学]