Synthesis of the visible-light-driven Ag3VO4/Ag3PO4/Ag photocatalysts with enhanced photocatalytic activity. Issue 18 (4th February 2016)

• Record Type: Journal Article
• Authors: Akbarzadeh, Elham; Setayesh, Shahrbanoo Rahman; Gholami, Mohammad Reza
• Is Part Of: RSC advances. Volume 6:Issue 18(2016)
• Page Start: 14909
• Page End: 14915
• Publication Date: 2016-02-04
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra00279j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A novel Ag3 VO4 /Ag3 PO4 /Ag photocatalyst is reported with enhanced photocatalytic activity. Abstract : A novel visible-light-driven Ag3 VO4 /Ag3 PO4 /Ag photocatalyst was successfully synthesized via an anion-exchange reaction and characterized by X-ray diffraction, field emission scanning electron microscopy, X-ray photoelectron spectroscopy, UV-vis diffuse-reflectance spectroscopy and Fourier transform infrared spectroscopy. The photocatalytic activities of prepared catalysts were evaluated by degradation of acid blue 92 (AB92) aqueous solutions under visible light irradiation. The photocatalytic results indicated that the synthesized Ag3 VO4 /Ag3 PO4 /Ag hybrid displays a significantly enhanced activity in degradation of acid blue 92 under visible light compared with pure Ag3 VO4 . The improved photocatalytic activity can be attributed to the efficient separation of photo-induced electrons and holes in the composite. A possible mechanism has been proposed for this improvement.