Herein, WO3 nanoplate was synthesized via a top-down route. A single crystal with monoclinic structure of WO3 nanoplate was confirmed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The activity of photocatalytic degradation Rhodamine B (RhB) over the WO3 nanoplate increased by about 1.4 times, when compared with that of bulk WO3. The enhancement of activity was attributed to the unique two-dimension (2D) structure leading to an effective separation of carriers, which was further verified via steady and time-solution fluorescence spectra (PL), photocurrent and electrochemical impedance spectra (EIS).
Xiaoyuan Zhang, Wenbin Hu, Yaping Chen, Jinhua Xiong
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