Enhanced photocatalytic activity and reaction mechanism of Ag-doped α-Bi2O3 nanosheets. Issue 12 (2nd December 2017)

• Record Type: Journal Article
• Authors: Shan, Lianwei; Ding, Jun; Sun, Wenli; Han, Zhidong; Jin, Liguo
• Is Part Of: Inorganic and nano-metal chemistry. Volume 47:Issue 12(2017)
• Page Start: 1625
• Page End: 1634
• Publication Date: 2017-12-02
• Subjects: Bismuth oxide -- nanosheet -- photocatalytic activities -- Ag doping -- scavenger; Inorganic compounds -- Synthesis -- Periodicals; Nanostructured materials -- Periodicals; Reactivity (Chemistry) -- Periodicals; Inorganic compounds -- Synthesis; Nanostructured materials; Reactivity (Chemistry); Periodicals; 546
• DOI: 10.1080/24701556.2017.1357590
• Languages: English
• ISSNs: 2470-1556

Abstract

ABSTRACT: The α-Bi2 O3 and Ag-doped nanosheets were successfully prepared via a citric method. Based on the sodium oxalate scavenger, it was inferred that the hole plays a key role in the photooxidation process for silver-doped Bi2 O3 . Combined further with the IR analysis, it is found that the ⋅ O 2 − has an effect on the decolorization of methylene blue (MB) under visible-light irradiation. The O2 /H2 O2 electrode could contribute to the separation of electron−hole pairs due to the electrons flowing from CB to this electrode. As a result, the doped Ag species greatly affected the photocatalytic activities of Bi2 O3 by the oxidative decolorization of MB.