4.2 Article

One-Pot Size and Interior-Cavity Controlled Synthesis of ZnO Hollow Micro-/Nano-Structured Spheres

期刊

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 12, 期 5, 页码 3990-3996

出版社

AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2012.6222

关键词

ZnO; Hollow; Hierarchical; Self-Assembly; One-Pot; Micro-/Nano-Structured

资金

  1. National Natural Science Foundation of China [20733006, 20871117]
  2. CAS/SAFEA International Partnership Program for Creative Research Teams
  3. National Basic Research Program of China [2011CB808400, 2007CB936402]

向作者/读者索取更多资源

In this work, ZnO hollow micro-/nano-structured microspheres were prepared via a one-pot solution route. The size and interior-cavity of these microspheres could be easily controlled by varying the precursor concentration. The hollow spherical assemblies were composed of short rod-like building units at low precursor concentration. When the precursor concentration increased, one-dimensional (1D) pearl-chain-like building units formed firstly and then self organized into hollow microspheres. The organization process and ripening of pearl-chain-like building units could be modulated by simply altering the reaction time. When tested in photocatalytic experiments, the hollow microspheres composed of loosely packed 1D pearl-chain-like building units showed higher activity than the densely packed ones. This method is very simple, mild, and may provide a new strategy to synthesize hierarchical self-assembled hollow structures.

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