Room-Temperature Synthesis of Self-Assembled Sb2S3 Films and Nanorings via a Two-Phase Approach

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• 作者：Qiaofeng Han ; Yawen Yuan ; Xiaoheng Liu ; Xiaodong Wu ; Fengli Bei ; Xin Wang ; Kaijun Xu
• 刊名：Langmuir
• 出版年：2012
• 出版时间：May 1, 2012
• 年：2012
• 卷：28
• 期：17
• 页码：6726-6730
• 全文大小：305K
• 年卷期：v.28,no.17(May 1, 2012)
• ISSN：1520-5827

文摘

The freestanding Sb₂S₃ films were easily synthesized at the interface of water and toluene at room temperature, where Na₂S and (C₂H₅OCS₂)₃Sb (xanthate, O-ethyldithiocarbonate) acted as sulfur and antimony source, respectively. After 3 h of aging, the Sb₂S₃ films with a flat surface toward organic side and rough surface toward aqueous side were assembled by sheaflike Sb₂S₃ nanowires. The Sb₂S₃ nanorings formed by end-to-end connection of the bundled nanowires appeared in the water layer when the reaction time reached 24 h. The Sb₂S₃ nanorings showed higher photocatalytic activity for methyl orange degradation under visible light than the Sb₂S₃ films owing to broader spectrum response and better aqueous dispersion.