Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74758
Title: A hierarchically porous hollow structure of layered Bi2TiO4F2 for efficient photocatalysis
Authors: Lei, S
Gao, X
Cheng, D
Fei, L 
Lu, W 
Zhou, J
Xiao, Y
Cheng, B
Wang, Y
Huang, H 
Keywords: Bismuth
Hierarchical hollow spheres
Perovskite phases
Photocatalysis
Semiconductors
Titanium
Issue Date: 2017
Publisher: Wiley-VCH Verlag
Source: European journal of inorganic chemistry, 2017, v. 2017, no. 13, p. 1892-1899 How to cite?
Journal: European journal of inorganic chemistry 
Abstract: Research into bismuth compounds has been greatly stimulated by their extensive applications in photocatalysis, which is a promising technique for environmental decontamination. In this research, Bi2TiO4F2 hierarchically porous hollow spheres are successfully prepared by a simple solvothermal method. The X-ray powder diffraction pattern shows that the sample has an Aurivillius-type layered perovskite structure. The electron microscopy analyses reveal that the obtained hierarchical hollow spheres have a porous surface composed of interlaced nanoplates. A mechanism for the formation and growth of the hollow spheres is proposed on the basis of time-dependent evolution experiments. The band gap of the prepared Bi2TiO4F2 sample is measured to be ca. 2.85 eV, and its photocatalytic activity and mechanisms are explored systematically. The results demonstrate that the product can serve as an effective catalyst for the degradation of rhodamine B and methyl orange through photocatalytic reactions under irradiation with UV light and can also be used in the visible-light degradation of rhodamine B through the photosensitization process.
URI: http://hdl.handle.net/10397/74758
ISSN: 1434-1948
EISSN: 1099-0682
DOI: 10.1002/ejic.201601319
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