Transforming Anodized
WO3 Films into Visible-Light-Active
Bi2WO6 Photoelectrodes by Hydrothermal Treatment

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

doi:10.1021/jz300179k.s001

jz300179k_si_001.pdf (1.09 MB)

Transforming Anodized WO₃ Films into Visible-Light-Active Bi₂WO₆ Photoelectrodes by Hydrothermal Treatment

journal contribution

posted on 2015-12-16, 21:13 authored by Charlene Ng, Akihide Iwase, Yun Hau Ng, Rose Amal

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.