Abstract
A single-step route was developed for the direct growth of tungsten oxide nanobelt arraysby heating a tungsten sheet without additional catalysts or reactants. X-ray diffraction andRaman analysis indicated that the tungsten oxide nanobelts were monoclinic. The surfacephotovoltage signal and photocurrent density of the tungsten oxide nanobeltarrays clearly suggested a high photoconversion ability. Further investigationdemonstrated that the photoelectrocatalytic activity of the nanobelt arrays was higherthan that of a tungsten oxide film when using phenol as the probe molecule.
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