Fabrication of In-rich AgInS₂ nanoplates and nanotubes by a facile low-temperature co-precipitation strategy and their excellent visible-light photocatalytic mineralization performance

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• 作者：Fang Deng ; Fei Zhong ; Peng Hu ; Xule Pei ; Xubiao Luo…
• 关键词：In ; rich AgInS2 ; Co ; precipitation ; In/Ag ratio ; Visible ; light photocatalysis ; Regeneration ; Nanorods
• 刊名：Journal of Nanoparticle Research
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：19
• 期：1
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Nanotechnology; Inorganic Chemistry; Characterization and Evaluation of Materials; Physical Chemistry; Optics, Lasers, Photonics, Optical Devices;
• 出版者：Springer Netherlands
• ISSN：1572-896X
• 卷排序：19

文摘

Visible-light-driven In-rich AgInS₂ nanoplates and nanotubes were successfully prepared by a convenient co-precipitation strategy at low temperature. The effect of different In/Ag molar ratio in the raw materials on the physicochemical properties and photocatalytic activity of AgInS₂ was investigated. The In/Ag molar ratio has an obvious effect on the morphology of AgInS₂, and the physicochemical properties and photocatalytic activity of AgInS₂ are also dependent on the In/Ag molar ratio. When the molar ratio of In/Ag is 9, the photoluminescence intensity of AgInS₂ reaches a minimum value, while its photocurrent density is maximum (0.011 mA/cm2), indicating the most efficient separation of electron-hole pairs. The AgInS₂ with the In/Ag molar ratio of 9 exhibits the highest visible-light photocatalytic activities with almost complete degradation of 2-nitrophenol, which is attributed to the narrowest band gap and the most efficient separation of electron-hole pairs. Moreover, In-rich AgInS₂ exhibits excellent regeneration ability.