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The Journal of Engineering

Relationship between secondary phase and photocatalytic activity in titanium-doped bismuth ferrite nanocrystals

Content Provider	IET Digital Library
Author	Wang, Lili Meng, Shuai Chen, Guoli Yang, Xiaodong Yan, Yan Chen, Rui
Abstract	Doping is an effective way to enhance photocatalytic activity. Herein, the authors have synthesised a series of BiFe1−x Ti x O3 (x = 0, 0.05, 0.10, 0.15, 0.20) nanocrystals through sol–gel methods. X-ray diffraction, Raman spectra, high-resolution transmission electron microscopy images and X-ray photoelectron spectroscopy characterisations indicate doping could facilitate the formation of Bi2Fe4O9 phase at low content, while inhibiting this formation at high content. Interestingly, the appearance of Bi2Fe4O9 improved the photocatalytic activity, which may be attributed to the spontaneous formation of heterostructure between Bi2Fe4O9 and BiFeO3 phases. The staggered energy bands between these two phases could effectively separate electrons and holes, resulting in enhanced photocatalytic performance.
Starting Page	713
Ending Page	716
Page Count	4
Volume Number	15
e-ISSN	17500443
Issue Number	Issue 10, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/mnl/15/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/mnl.2020.0223
Journal	Micro & Nano Letters
Publisher Date	2020-08-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amorphous And Nanostructured Magnetic Materials Auger Spectroscopy BiFeO3:Ti Bismuth Compound Doping Doping And Implantation of Impurities Electron Spectroscopy For Chemical Analysis Ferrimagnetics Ferrites Heterogeneous Catalysis at SurFace And Other Surface Reactions Heterostructure High-resolution Transmission Electron Microscopy Image Infrared And Raman Spectra in Inorganic Crystal Magnetic Property of Nanostructure Nanofabrication Nanomagnetics NanoParticle Nanostructured Material Nanotube And Nanostructured Material Photocatalysis Photocatalytic Activity Photoelectron Raman Spectra Secondary Phase Sol Gel Processing Sol-gel Method Spontaneous Formation Staggered Energy Band Structure of Solid Clusters Titanium Titanium-doped Bismuth Ferrite NanoCrystal Transmission Electron Microscopy X-Ray Diffraction X-Ray Photoelectron Spectroscopy X-Ray Photoelectron Spectroscopy Characterisations
Content Type	Text
Resource Type	Article

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