Controlled Growth and Applications of Complex Metal Oxide ZnSn(OH)6 Polyhedra

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• 作者：Jingzhou Yin ; Feng Gao ; Chengzhen Wei ; Qingyi Lu
• 刊名：Inorganic Chemistry
• 出版年：2012
• 出版时间：October 15, 2012
• 年：2012
• 卷：51
• 期：20
• 页码：10990-10995
• 全文大小：360K
• 年卷期：v.51,no.20(October 15, 2012)
• ISSN：1520-510X

文摘

We successfully controlled the crystallographic surface of ZnSn(OH)₆ crystals and systematically obtained ZnSn(OH)₆ crystals in different shapes including cubes, truncated cubes, cuboctahedrons, truncated octahedrons, and octahedrons using a simple solvothermal method in a methylcellulose (MC) ethanol/water solution. By simply adjusting the amount of the NaOH solution added to the reaction system, we observed the shape evolution of ZnSn(OH)₆ particles from cube to octahedron, with the sizes gradually increasing from about 200 nm to 1鈥? 渭m. These results not only provide ZnSn(OH)₆ polyhedra bound by different lattice planes, but also make it possible to investigate the morphology鈥損roperty relationship of ZnSn(OH)₆ particles with different morphologies obtained under similar conditions. The antibacterial activities of the as-prepared ZnSn(OH)₆ polyhedral particles were studied. It was found that the antibacterial activities of ZnSn(OH)₆ particles against Escherichia coli depend on the shape of the ZnSn(OH)₆ particles, demonstrating that the surface structure of nanocrystals affects the antibacterial activity. Additionally, the obtained ZnSn(OH)₆ polyhedra can be applied as precursors for Zn₂SnO₄/SnO₂ composites with different morphologies by calcining at 600 掳C.