Acta Photonica Sinica, Volume. 50, Issue 3, 201(2021)
Preparation and Photoelectrocatalytic Properties of WO3/Pt Composite Film
WO3 nano-rods were synthesized on the FTO substrate by hydrothermal method. Pt nanoparticles with different deposition time(40 s, 80 s, 120 s) was loaded onto WO3 nano-rods by an electrodeposition method to prepare WO3/Pt composite film photoanodes. Characterization of samples was conducted by scanning electron microscopy and X-ray diffraction, the results show that the WO3/Pt composite films have been synthesized. Diffuse reflectance spectra show that the WO3/Pt composite film has more strong absorption than pure WO3 nano-rods film. Electrochemical impedance spectroscopy shows that the WO3/Pt composite film enhances a charge transfer efficiency compared with pure WO3 nano-rods film. The photoelectric properties of the samples were obtained from the photocurrent and the photoelectric catalysis. The WO3/Pt composite film samples have higher photocurrent and photoelectric catalytic (PEC) activity than pure WO3, and the sample obtained by depositing for Pt nanoparticles at 80 s (WO3/Pt-80 s) has the highest photocurrent and photoelectric photoelectric catalytic activity. Meanwhile, the photoelectric catalytic activity of WO3/Pt-80s composite film is higher than direct photocatalysis or electric catalysis of WO3/Pt-80s composite film.
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Yujian ZHOU, Xue YANG, Jikai YANG, Decai NIE, Shurui YU, Nan XIAO, Zhipeng HOU, Yiming ZHAO, Xin WANG, Guozheng WANG, Kewei HUAN, Wenxin LIU. Preparation and Photoelectrocatalytic Properties of WO3/Pt Composite Film[J]. Acta Photonica Sinica, 2021, 50(3): 201
Category: Thin Films
Received: --
Accepted: --
Published Online: Jul. 13, 2021
The Author Email: YANG Jikai (jikaiyang0625@163.com)