S-scheme photocatalyst Bi2O3/TiO2 nanofiber with improved photocatalytic performance

被引：168
作者：
He, Rongan [1 ]
Liu, Haijuan [1 ]
Liu, Huimin [1 ]
Xu, Difa [1 ]
Zhang, Liuyang [2 ]
机构：
[1] Changsha Univ, Hunan Prov Key Lab Appl Environm Photocatalysis, Changsha 410022, Peoples R China
[2] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2020年 / 52卷
基金：
中国国家自然科学基金;
关键词：
Electrospinning; Bismuth; Fiber; In-situ synthesis; TIO2; NANOFIBER; HETEROJUNCTION PHOTOCATALYSTS; COMPOSITE NANOFIBER; HYDROTHERMAL METHOD; FACILE FABRICATION; HYBRID NANOFIBERS; WATER; EFFICIENT; HYDROGEN; NANOSHEETS;
D O I：
10.1016/j.jmst.2020.03.027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, a hierarchical Bi2O3/TiO2 fibrous composite was in-situ fabricated on an electrospun TiO2 nanofiber at ambient temperature. In the Bi2O3/TiO2 composite, S-scheme electron migration occurred between Bi2O3 and TiO2. In the photocatalytic degradation of phenol under simulated sunlight, the as-prepared Bi2O3/TiO2 nanofibers considerably outperformed Bi2O3 nanoparticles and TiO2 nanofibers. This improvement is contributed by maintaining and effectively utilizing the useful carriers and consuming the useless holes and electrons, realized by the S-scheme heterojunction and hierarchical structure. This study also provides an alternative design fashion for photocatalysts. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
引用
收藏
页码：145 / 151
页数：7
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