Precipitation of Uniform ZnO Particles with Controllable Layered Structure from Aqueous Solutions

Title: Precipitation of Uniform ZnO Particles with Controllable Layered Structure from Aqueous Solutions

Volume: 6 Issue: 2

Author(s): Jianjun Guo, Xuehui Liu, Yuchuan Cheng, Yong Li, Gaojie Xu and Ping Cui

Affiliation:

Keywords: Zinc Oxide, nanostructured materials, layered structure, Solution route, Synthesis

Abstract: Zinc nitrate precipitated with NaOH solution under double-jet conditions produced uniform nanostructured zinc oxide particles containing stacked nanoplates at 80 °C in the presence of starch sodium octenyl succinate (SSOS). In the absence of SSOS, nonuniform agglomerated ZnO particles and hexagonal nanorods were obtained. The presence of SSOS provided important hints on particle formation and confirmed that submicronic particles resulted from nanocrystals oriented aggregation. The formation kinetics of layered structures was followed by SEM observations, suggesting that they result from a rapid aggregation of about 40nm primary nanoparticles followed by rearrange into organized layered structures. Oxide materials with this shape are especially interesting for catalytic, piezoelectric and sensing applications. The stacked ZnO exhibits a surprisingly good activity for aqueous photocatalytic decompositions of 4-chlorophenol under visible light.

Cite this article as:

Guo Jianjun, Liu Xuehui, Cheng Yuchuan, Li Yong, Xu Gaojie and Cui Ping, Precipitation of Uniform ZnO Particles with Controllable Layered Structure from Aqueous Solutions, Current Nanoscience 2010; 6 (2) . https://dx.doi.org/10.2174/157341310790945704