Chinese Journal of Applied Chemistry

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Influence of Mn2+ on the Morphology Control of ZnS Nanoparticles

ZHAO Xinmei1, QIU Fubao2, WANG Haishui2*   

  1. (1.Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;
    2.School of Chemistry & Chemical Engineering,South China University of Technology,Guangzhou 510640,China)
  • Received:2011-04-15 Revised:2011-06-02 Published:2012-02-10 Online:2012-02-10
  • Contact: Hai-Shui Wang

Abstract: ZnS nanoparticles on the self-assembled monolayer of 3-sulfopropyltrimethoxylsilane were fabricated by the reaction between ZnSO4 and thioacetamide in aqueous solution. It was found that a compact ZnS nanoparticle film with string-like particles was obtained when the aqueous solution contained only Zn2+. Interestingly, the morphology of ZnS nanoparticles changed from the compact film to hemispheres with herringbone-like structure when Mn2+ was added into the aqueous solution. XRD and EDS results indicated that the manganese ions were not doped into the ZnS nanoparticles. These experimental results showed that Mn2+ played a key role in the morphological control of the ZnS nanoparticles, even though Mn2+ ions were absent in the final as-prepared products. The mechanism of the formation of ZnS with Mn2+ presence was discussed.

Key words: ZnS, nanoparticles, morphology control, manganese ions

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