季铵碱水溶液中微波辅助制备纳米ZnO  

Microwave-assisted Preparation of ZnO Nanostructures in Quaternary Ammonium Hydroxide Aqueous Solution

作　　者：刘领[1] 林敬东[1] 杨乐夫[1] 廖代伟[1] 

机构地区：[1]厦门大学化学化工学院,醇醚酯化工清洁生产国家工程实验室,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2011年第6期1011-1015,共5页Journal of Xiamen University：Natural Science

基　　金：国家重点基础研究发展计划(973)项目(2011CBA00508)

摘　　要：以四丁基氢氧化铵、四乙基氢氧化铵和四甲基氢氧化铵等季铵碱水溶液为反应体系,Zn(Ac2)和NaOH为原料,微波辅助制备了球状、圆片状、细长薄片状及多脚状等纳米ZnO;对样品进行了XRD和SEM表征,分析了微波辅助下纳米ZnO的可能生长过程.结果表明:季铵阳离子能有效屏蔽晶核;季铵碱浓度越高,OH-浓度越高,或者前驱体Zn(OH)42-浓度越低,则样品粒径越小且越趋于球状.ZnO nanoparticles were synthesized by microwave heating,using Zn（Ac）2·2H2O and NaOH as raw materials,in the solvent of quaternary ammonium hydroxide aqueous solution such as tetrabutyl ammonium hydroxide（TBAH）.Fundamental characterizations by XRD and SEM were conducted for the nano-ZnO.By controlling experimental conditions,exclusive sphere-like,sheet-like,rod-like or multipod-like microcrystals could be synthesized in a very short period of time.The growth process of nano-ZnO samples was simply analysed.The results indicated that the large quaternary ammonium cation played an important role in the crystal growth process,and the particle size of nano-ZnO decreased with increasing concentration of quaternary ammonium base,concentration of OH-or with decreasing concentration of Zn（OH）42-.

关 键 词：纳米ZNO 微波辅助 季铵碱水溶液 

分 类 号：O611.62[理学—无机化学]