关键词: ZnS, 纳米颗粒, 形貌调控, 锰离子

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