Large improvement of photo-response of CuPc sensitized Bi2WO6 with enhanced photocatalytic activity
- 4 January 2013
- journal article
- Published by Royal Society of Chemistry (RSC) in Dalton Transactions
- Vol. 42 (13), 4579-4585
- https://doi.org/10.1039/c2dt32622a
Abstract
In order to harvest the solar energy more efficiently, a novel photocatalyst was designed by introducing an organic dye sensitizer, copper phthalocyanine (CuPc), into an inorganic semiconductor Bi2WO6. This composite photocatalyst exhibited an improved photo-response in the whole visible spectrum and even the near infrared region. Under a red LED (λ = 620 nm) irradiation, the CuPc/Bi2WO6/FTO electrode showed photocurrent response. The photo-degradation of RhB and phenol under simulated solar light demonstrated that the CuPc–Bi2WO6 composite exhibited much higher photocatalytic activity than bare Bi2WO6. Moreover, the composite photocatalyst also showed photo-activity under a red LED (λ = 620 nm) irradiation, further testifying the sensitization effect of CuPc. This study provides a new strategy to increase the utilization rate of solar energy substantially.Keywords
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