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水熱法制備ZnS/Ag復合納米線及其光催化性能研究
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國家自然科學基金(60471005); 長江學者創(chuàng)新團隊計劃


Phtocatalytic Properties of ZnS/Ag Composite Nanowires Prepared by Hydrothermal Method
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    摘要:

    采用水熱法制備了負載Ag的ZnS納米線，通過XRD, TEM以及UV-Vis對所合成的納米線的相結(jié)構(gòu)、形貌以及光學性能進行了表征。并以甲基橙為目標降解物，評價了所制備的復合納米線在紫外光下的光催化性能。研究結(jié)果表明，水熱法制備的ZnS納米線對甲基橙溶液的光催化活性比商業(yè)ZnS粉體更高，并且銀的負載對ZnS納米線的光催化活性有顯著的提高作用。這是由于銀粒子復合ZnS納米線能促進光生電子空穴對分離，增多ZnS納米線的反應活性點，從而提高其光催化活性

    Abstract:

    Ag supported ZnS (ZnS/Ag) composite nanowires were prepared by a hydrothermal method. The phase structure, morphology and optical properties of the prepared nanowires were characterized by XRD, TEM and UV-Vis spectrophotometer. With methyl orange as degradation target, photocatalytic performances of the prepared composite nanowires under ultraviolet radiation were evaluated. Results show that the photocatalytic activity of ZnS nanowires prepared by the hydrothermal method was superior to that of commercial ZnS. Meanwhile, the Ag supported ZnS nanowires exhibit higher photocatalytic activity than that of non-supported ZnS nanowires, which is attributed to that Ag particles promote the separation of the pairs of excited electrons and holes, and increase the activity points of ZnS nanowires

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李瑩瀅,董 祥,程傳偉,薛 峰,高俊珊,張海黔.水熱法制備ZnS/Ag復合納米線及其光催化性能研究[J].稀有金屬材料與工程,2010,39(8):1380~1384.[Li Yingying, Dong Xiang, Cheng Chuanwei, Xue Feng, Gao Junshan, Zhang Haiqian. Phtocatalytic Properties of ZnS/Ag Composite Nanowires Prepared by Hydrothermal Method[J]. Rare Metal Materials and Engineering,2010,39(8):1380~1384.]
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  • 收稿日期:2009-08-30
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