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Cited by 1,230

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Visible-Light-Induced Degradation of Rhodamine B by Nanosized Bi2WO6

Fu, Hongbo, Pan, Chengshi, Yao, Wenqing, Zhu, Yongfa·2005·The Journal of Physical Chemistry B

Abstract

Visible-light-induced photodegradation of rhodamine B over nanosized Bi2WO6 has been observed. Bi2WO6 exhibited a high photoactivity to photodegrade rhodamine B in the central pH solution under visible irradiation (lambda > 420 nm). After five recycles for the photodegradation of rhodamine B, the catalyst did not exhibit any significant loss of activity, confirming the photocatalyst is essentially stable. The total organic carbon measurement displayed that a high degree of mineralization was achieved in the present photochemical system. The results of density functional theory calculation illuminated that the visible-light absorption band in the Bi2WO6 catalyst is attributed to the band transition from the hybrid orbitals of Bi6s and O2p to the W5d orbitals. The Bi2WO6-assisted photocatalytic degradation of rhodamine occurs via two competitive processes: a photocatalytic process and a photosensitized process. The transformation of rhodamine is mainly via the photocatalytic process. Kinetic studies by using electron spin resonance and the radical scavenger technologies suggest that *OH is not the dominant photooxidant. Direct hole transfers and O2*- could take part in Bi2WO6 photocatalysis. This study provided a possible treatment approach for organic pollutants by using visible light in aqueous ecosystems.

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Metadata

Authors
Fu, H., Pan, C., Yao, W., & Zhu, Y.
Venue
The Journal of Physical Chemistry B
Published
2005-10-21
Volume
109
Issue
47
Pages
22432-22439
ISSN
  • 1520-5207 (ISSN-L)
  • 1520-6106
OpenAlex
W1990986750
Cited by
1,230
References
2
FWCI
19.29
Type
journal article
Language
en
Open access
closed

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