Orthorhombic MoO3 and W-doped MoO3 nanobelts were successfully synthesized by a hydrothermal method. The effect of W dopant on the photocatalytic performance of W-doped MoO3 nanobelts was studied. The phase, morphology, and oxidation state of the products were characterized by X-ray diffraction analysis, Fourier-transform infrared and Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. In this research, MoO3 and W-doped MoO3 exhibited the same phase and morphology of orthorhombic nanobelts with growth along the  direction, including detection of Mo6+, O2−, and W6+ in the 3 mol% W-doped MoO3 sample. The photocatalytic performance of the as-synthesized MoO3 and W-doped MoO3 nanobelts was monitored through photodegradation of methylene blue (MB) under visible radiation. W-doped MoO3 nanobelts showed better photocatalytic performance than pure MoO3. The 3 mol% W-doped MoO3 photocatalyst exhibited very good visible-light-driven activity for photodegradation of MB, as high as 99 % within 60 min.
Research on Chemical Intermediates – Springer Journals
Published: Apr 21, 2016
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