期刊
NANOSCALE RESEARCH LETTERS
卷 14, 期 -, 页码 -出版社
SPRINGEROPEN
DOI: 10.1186/s11671-019-3038-3
关键词
Zinc oxide; Nanocrystals synthesis; Growth mechanism; Oriented attachment (OA); Suspension property
资金
- Natural Science Foundation of Guangdong Province, China [2018A0303130068]
- Guangdong Science and Technology Department, China [2018050506081, 2017A050506055, 2017A040405055, 2016A010103036]
- Guangdong Education Department, China [2017KZDXM045]
Understanding nanoparticle growth mechanisms is crucial for the synthesis of nanocrystals with desired biological and chemical properties. Growth of nanocrystals by oriented attachment (OA) is frequently reported as a method supplementary to the classical growth by Ostwald ripening (OR) process. In this work, ZnO nanoparticles (NPs) were prepared by wet chemical method. Size/shape evolution of ZnO NPs in ethanol solution was systematically studied using transmission electron microscopy (TEM), dynamic light scattering (DLS), and X-ray diffraction (XRD). In addition, a detailed process of the nanoparticle growth-based OA mechanism is discussed. Results revealed that reaction conditions affect size/shape of NPs and change their surface structure: prior to OA, the surface of adjacent particles transformed into their rough states. We proved that stability of the solution was significantly improved in this state. Such a state is important to design nanoparticles with high stability and as nano-suspensions with special physical and/or chemical properties. This state is a critical step in enhancing OA process.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据