Facile ultrasonic-assisted preparation of Fe₃O₄/Ag₃VO₄ nanocomposites as magnetically recoverable visible-light-driven photocatalysts with considerable activity

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• 作者：Robab Ahmadkhani ; Aziz Habibi-Yangjeh
• 关键词：Fe3O4/Ag3VO4 ; Nanocomposites ; Magnetic photocatalysts ; Visible ; light ; driven
• 刊名：Journal of the Iranian Chemical Society
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：14
• 期：4
• 页码：863-872
• 全文大小：
• 刊物主题：Analytical Chemistry; Inorganic Chemistry; Physical Chemistry; Biochemistry, general; Organic Chemistry;
• 出版者：Springer Berlin Heidelberg
• ISSN：1735-2428
• 卷排序：14

文摘

In this work, a facile ultrasonic-assisted method was applied for preparation of Fe₃O₄/Ag₃VO₄ nanocomposites with different compositions. The as-prepared products were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive analysis of X-rays, UV–Vis diffuse reflectance spectroscopy, Fourier transform infrared spectroscopy, and vibrating sample magnetometery. Photocatalytic degradation of rhodamine B under visible-light irradiation was investigated, and it was found that weight ratio of Fe₃O₄–Ag₃VO₄ has significant influence on the photocatalytic activity and the nanocomposite with 1:4 weight ratio of Fe₃O₄–Ag₃VO₄ has superior activity. In addition, the nanocomposite showed great activities in degradations of methylene blue and fuchsine, which are comparable with activity of the pure Ag₃VO₄. More importantly, this nanocomposite displayed remarkable saturation magnetization, leading to easily and quickly separation of its suspension from treated system by applying a magnetic field.