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Home / Journal of Nanoscience and Nanotechnology, Volume 20, Number 3

Photo-Induced Charge Transfer on Pt/Bi2WO6 Composite Photocatalysts

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Pt/Bi2WO6 composite photocatalysts were prepared by a facile photoreduction method. Pt nanoparticles with an average size of 5–8 nm were successfully deposited on the surface of Bi2WO6 microspheres and the photocatalytic activity of Bi2WO6 was greatly improved by Pt nanoparticles. The photo-induced charge transfer properties of samples were studied by means of surface photovoltage (SPV) and transient photovoltage (TPV) techniques, giving an insight into the intrinsic reasons of the improvement in photocatalytic activity. The SPV and TPV results revealed that the deposited Pt nanoparticles could trap photo-induced electrons and then largely enhance the separation efficiency of photo-induced charge carriers.

Keywords: Charge Transfer; Photocatalytic Activity; Photovoltage; Pt/Bi2WO6 Composite

Document Type: Research Article

Affiliations: 1: Institute of Advanced Technology, Heilongjiang Academy of Sciences, Heilongjiang 150020, China 2: Changchun Applied Chemistry Corporation Chinese Academy of Sciences, Jilin 130000, China 3: Shenzhen Yaya Zhixian Technology Co., Ltd., Shenzhen, 518172, China

Publication date: 01 March 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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