Construction of C60-decorated SWCNTs (C60-CNTs)/bismuth-based oxide ternary heterostructures with enhanced photocatalytic activity. Issue 85 (23rd November 2017)

• Record Type: Journal Article
• Authors: Lin, Xue; Xi, Yang; Zhao, Rui; Shi, Junyou; Yan, Ning
• Is Part Of: RSC advances. Volume 7:Issue 85(2017)
• Page Start: 53847
• Page End: 53854
• Publication Date: 2017-11-23
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra11056a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Ternary heterostructured C60 -CNTs/Bi2 MoO6 and C60 -CNTs/BiVO4 photocatalysts were successfully synthesized. They exhibited enhanced photocatalytic activity. Abstract : Novel nanostructured carbon/BiVO4 and nanostructured carbon/Bi2 MoO6 nanocomposite photocatalysts were fabricated via a facile hydrothermal process by using fullerene (C60 )-decorated single-walled carbon nanotubes (SWCNTs) as the carbon source, which are denoted as C60 -CNTs. The fabricated nanocomposites were characterized by various analytical techniques. The results showed that the C60 -CNTs are intimately bound to the bismuth-based oxide surfaces. The UV-vis diffuse reflectance spectra of C60 -CNTs/bismuth-based oxide nanocomposites exhibited increased visible-light absorption compared to pure bismuth-based oxides. Moreover, the ternary nanocomposites demonstrated significantly enhanced photocatalytic activity for the degradation of rhodamine B (Rh B) under visible light. The enhanced performance is attributed to the extended absorption in the visible-light region resulting from the incorporation of C60 -CNTs, high specific surface area, and efficient separation of electron–hole pairs by the ternary composite system. In addition, the radical-trapping experiments revealed that the holes and O2 ˙ − play major roles in the decolorization of Rh B under visible-light irradiation.