Visible light photocatalytic properties of α-Bi2O3 composited with Fe2O3. (July 2014)

• Record Type: Journal Article
• Authors: Gao, Y.; Xin, H. J.; Shang, J.; Wang, L.; Hao, W. C.; Wang, T. M.
• Is Part Of: Materials research innovations. Volume 18(2014)Supplement 4
• Page Start: 41
• Page End: 44
• Publication Date: 2014-07
• Subjects: α-Bi2O3/Fe2O3, -- Composite, -- Visible light, -- Photocatalytic activity; Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891714Z.000000000642
• Languages: English
• ISSNs: 1432-8917

Abstract

Abstract : Bismuth oxide was widely studied as an important metal oxide semiconductor. In this paper, a series of α-Bi2 O3 /Fe2 O3 with different contents of Fe2 O3 were synthesised using a sol–gel method. The photocatalytic performance of composites powder was evaluated using rhodamine B (RhB) as a model pollutant under visible light irradiation (λ>420 nm). The α-Bi2 O3 /Fe2 O3 ( x ) samples present much higher photocatalytic performance than that of pure α-Bi2 O3 . When the composite content is 30 wt-%, the composite shows the best performance which can effectively degrade 85% RhB within 60 min. In addition, the photocatalytic mechanism of this kind of composite photocatalyst was discussed.