A graphitic-C3N4-hybridized Ag3PO4 tetrahedron with reactive {111} facets to enhance the visible-light photocatalytic activity. Issue 112 (27th October 2015)

• Record Type: Journal Article
• Authors: Tang, Chunni; Liu, Enzhou; Fan, Jun; Hu, Xiaoyun; Ma, Yongning; Wan, Jun
• Is Part Of: RSC advances. Volume 5:Issue 112(2015)
• Page Start: 91979
• Page End: 91987
• Publication Date: 2015-10-27
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra18096a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A graphitic-C3 N4 -hybridized Ag3 PO4 tetrahedron with reactive {111} facets was prepared though a facile solvent evaporation method and applied for the photocatalytic degradation of methyl blue and removal of NO under visible light irradiation. Abstract : A graphitic-C3 N4 -hybridized Ag3 PO4 tetrahedron with reactive {111} facets was prepared though a facile solvent evaporation method and applied for the photocatalytic degradation of methyl blue (MB) in aqueous solution and removal of NO at the indoor air level under visible light irradiation (>400 nm). In addition to the superior photocatalytic performance of the highly reactive {111} facets of tetrahedral Ag3 PO4, the hybridization with g-C3 N4 was confirmed to further improve the photocatalytic activity, and the content of g-C3 N4 had a great influence on the photocatalytic activity. The photocatalytic activity enhancement of g-C3 N4 /Ag3 PO4 {111} hybrid photocatalysts could be ascribed to the efficient separation of electron–hole pairs through a Z-scheme system composed of Ag3 PO4, Ag and g-C3 N4, in which Ag particles acted as the charge separation center. Furthermore, h + and O2 ˙ − played the major roles in the photocatalysis process. This work suggested that the synthesized g-C3 N4 /Ag3 PO4 {111} hybrid would be a promising visible light driven photocatalytic material for environmental remediation.