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Transforming Anodized WO 3 Films into Visible-Light-Active Bi 2 WO 6 Photoelectrodes by Hydrothermal Treatment

2012; American Chemical Society; Volume: 3; Issue: 7 Linguagem: Inglês

10.1021/jz300179k

1948-7185

Charlene Ng, Akihide Iwase, Yun Hau Ng, Rose Amal,

Gas Sensing Nanomaterials and Sensors

We directly transformed anodized tungsten oxide film (WO3·2H2O) into bismuth tungstate (Bi2WO6) by substituting the intercalated water molecules with [Bi2O2]2+ in a hydrothermal treatment. The resultant Bi2WO6 was readily used as an electrode to produce anodic photocurrent in H2 evolution on the Pt counter electrode observed under visible light irradiation.