Room temperature synthesis and photocatalytic property of AgO/Ag₂Mo₂O₇ heterojunction nanowires

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• 作者：Muhammad Hashim ; Chenguo Hu ; Xue Wang ; Buyong Wan ; Jing Xu
• 关键词：A. Nanostructures ; B. Chemical synthesis ; D. Catalytic properties
• 刊名：Materials Research Bulletin
• 出版年：2012
• 出版时间：November, 2012
• 年：2012
• 卷：47
• 期：11
• 页码：3383-3389
• 全文大小：1627 K

文摘

AgO/Ag₂Mo₂O₇ heterojunction nanowires were synthesized at temperatures of 25 ¡ãC, 50 ¡ãC, 80 ¡ãC, and 110 ¡ãC, under magnetic stirring in solution reaction. The catalytic activity of AgO/Ag₂Mo₂O₇ nanowires was evaluated by the degradation of Rhodmine B dye under the irradiation of the simulated sunlight. The synthesized samples were characterized by X-ray diffractometer, energy dispersive spectrometry, X-ray photoelectron spectrometer, scanning electron microscopy, and transmission electron microscopy. The results show that the AgO nanoparticles are attached on the surface of the Ag₂Mo₂O₇ nanowires to form a heterojunction structure. The length of the nanowires is up to 10 ¦Ìm and the size of the AgO nanoparticles is 10-20 nm. The length of nanowires increases with increasing reaction time and temperature while the AgO particles are gradually embedded into the nanowires. The photocatalytic activity is greatly improved for the AgO/Ag₂Mo₂O₇ heterojunction nanowires compared with that of the pure Ag₂Mo₂O₇ nanowires, indicating a remarkable role of AgO particles on the Ag₂Mo₂O₇ nanowires in the photodegradation.