摘要
采用化学浴沉积法,以Zn(CH3COO)2和TEA为反应体系,制备了ZnO纳米颗粒团聚微球,并对不同陈化时间阶段下的产物分别进行了物相、形貌、热重以及傅里叶红外吸收光谱表征,同时研究了不同TEA含量对最终产物的影响。结果表明:在恒温陈化过程中,首先会生成纳米片状的Zn5(OH)8Ac2·2H2O,同时它们之间相互连接为花状结构。其次随着陈化时间的增加,花状的Zn5(OH)8Ac2·2H2O不断分解为ZnO纳米颗粒,最后ZnO纳米颗粒会进一步自组装为一定尺寸的微米球。
ZnO nanoparticle-aggregated microspheres were synthesized through chemical bath deposition for aqueous solution containing Zn（ CH3COO）2 and TEA. The as-prepared products were investigated by X-ray diffraction, scanning electron microscopy, thermo-gravimetric analysis and FT-IR absorption spectra. The effect of different TEA concentration on the morphologies of ZnO was also studied. The results suggest that some monodisperse flower-like Zn5（OH）8Ac2·2H2O are obtained from the aggregation of small lamellas at early stages. As the aging time increases, Zn5（OH）8Ac2·2H2O decomposs into ZnO nanoparticles and simultaneously, ZnO nanopartieles assemble into a microspheres until the Zn5（OH）8Ac2·2H2O completely disappears.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2014年第1期42-46,共5页
Journal of Synthetic Crystals
基金
长江学者与创新团队发展计划资助项目(IRT0972)
国家自然科学基金(51002102)
山西省自然科学基金(2011011022-1)
山西省高等学校优秀青年学术带头人资助项目
关键词
ZNO
化学浴沉积法
形成机制
陈化时间
ZnO
chemical ,bath deposition formation mechanism
aging time
