Photo-Induced Charge Transfer on Pt/Bi2WO6 Composite Photocatalysts

被引：2

作者：

He, Dong-Qing ^{[1
]}

Liu, Hong-Cheng ^{[1
]}

Wang, Qi ^{[1
]}

Yu, Qian ^{[1
]}

Liu, Jin-Ying ^{[2
]}

Qu, Yun-Peng ^{[3
]}

Zhang, Xiao-Chen ^{[1
]}

机构：

[1] Heilongjiang Acad Sci, Inst Adv Technol, Harbin 150020, Heilongjiang, Peoples R China

[2] Chinese Acad Sci, Changchun Appl Chem Corp, Jilin 130000, Jilin, Peoples R China

[3] Shenzhen Yaya Zhixian Technol Co Ltd, Shenzhen 518172, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2020年 / 20卷 / 03期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Pt/Bi2WO6; Composite; Photovoltage; Charge Transfer; Photocatalytic Activity; PHOTOVOLTAGE PHASE SPECTROSCOPY; HIGHLY EFFICIENT; PHENOL DEGRADATION; BI2WO6; PERFORMANCE; MICROSPHERES; PHOTODEGRADATION; HETEROJUNCTION; FABRICATION; REDUCTION;

D O I：

10.1166/jnn.2020.17153

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1838 / 1844

页数：7

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