Photodegradation of Methyl Orange Using Magnetically Recoverable AgBr@Ag3PO4/Fe3O4 Photocatalyst under Visible Light. (1st April 2014)

• Record Type: Journal Article
• Authors: Wang, Zhen; Yin, Lu; Chen, Ziwen; Zhou, Guowang; Shi, Huixiang
• Other Names: Wang Haiqiang Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2014(2014)
• Publication Date: 2014-04-01
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2014/150150
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : A novel magnetically recoverable AgBr@Ag3 PO4 /Fe3 O4 hybrid was prepared by a simple deposition-precipitation approach and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and UV-Vis diffuse reflectance spectroscopy (DRS). The results revealed that the photocatalytic activity and stability of AgBr@Ag3 PO4 /Fe3 O4 composite toward decomposition of methyl orange (MO) dye were superior to those of pure Ag3 PO4 under visible light irradiation. The photocatalytic activity enhancement of AgBr@Ag3 PO4 /Fe3 O4 is closely related to the efficient separation of electron-hole pairs derived from the matching band potentials between Ag3 PO4 and AgBr, as well as the good conductivity of Fe3 O4 . Moreover, the photocatalyst could be easily separated by applying an external magnetic field due to its magnetic property. The quenching effects of different scavengers proved that active h + and O 2 - played the major role for the MO degradation. This work would provide new insight for the construction of visible light responsible photocatalysts with high performance, good stability, and recoverability.