State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, P. R. China
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Dalton Trans., 2013,42, 4579-4585
02 Nov 2012,
02 Jan 2013
First published online
04 Jan 2013
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.
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