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Synthesis of ZnS nanoparticles on a solid surface: Atomic force microscopy study

机译：固体表面上ZnS纳米粒子的合成：原子力显微镜研究

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摘要

In this work, zinc sulfide (ZnS) nanoparticles had been synthesized on DNA network/mica and mica surface, respectively. The synthesis was carried out by first dropping a mixture of zinc acetate and DNA on a mica surface for the formation of the DNA networks or zinc acetate solution on a mica surface, and subsequently transferring the sample into a heated thiourea solution. The Zn~(2+) adsorbed on DNA network/mica or mica surface would react with S~(2-) produced from thiourea and form ZnS nanoparticles on these surfaces. X-ray diffraction and atomic force microscopy (AFM) were used to characterize the ZnS nanoparticles in detail. AFM results showed that ZnS nanoparticles distributed uniformly on the mica surface and deposited preferentially on DNA networks. It was also found that the size and density of ZnS nanoparticles could be effectively controlled by adjusting reaction temperature and the concentration of Zn~(2+) or DNA. The possible growth mechanisms have been discussed in detail.
机译：在这项工作中，分别在DNA网络/云母和云母表面合成了硫化锌（ZnS）纳米粒子。通过首先将乙酸锌和DNA的混合物滴在云母表面上以形成DNA网络或在云母表面上形成乙酸锌溶液，然后将样品转移到加热的硫脲溶液中来进行合成。吸附在DNA网络/云母或云母表面上的Zn〜（2+）将与硫脲产生的S〜（2-）反应并在这些表面上形成ZnS纳米粒子。 X射线衍射和原子力显微镜（AFM）用于详细表征ZnS纳米粒子。原子力显微镜的结果表明，ZnS纳米粒子均匀地分布在云母表面，并优先沉积在DNA网络上。还发现通过调节反应温度和Zn〜（2+）或DNA的浓度可以有效地控制ZnS纳米粒子的尺寸和密度。已经详细讨论了可能的生长机制。

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  • 来源
    《Applied Surface Science》 |2010年第2期|p.558-564|共7页
  • 作者

    Huizhen Yuan; Wenping Lian; Yonghai Song; Shouhui Chen; Lili Chen; Li Wang;

  • 作者单位

    College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, People's Republic of China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, People's Republic of China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, People's Republic of China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, People's Republic of China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, People's Republic of China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    DNA; AFM; ZnS nanoparticles; thiourea;

    机译：脱氧核糖核酸;原子力显微镜ZnS纳米颗粒;硫脲;

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