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Journal of Materials Science
Published in: Journal of Materials Science 24/2015

01-12-2015 | Original Paper

Urea-assisted synthesis of ultra-thin hexagonal tungsten trioxide photocatalyst sheets

Authors: Yi Zheng, Gang Chen, Yaoguang Yu, Yidong Hu, Yujie Feng, Jingxue Sun

Published in: Journal of Materials Science | Issue 24/2015

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Abstract

Ultra-thin hexagonal tungsten trioxide (h-WO3) sheet has been synthesized with the assistance of urea. Some measurements have been carried out for sample characterization, such as XRD, TEM, AFM, FT-IR, Raman, XPS, and Zeta potential. It is shown that urea not only acts as pH regulator and stabilizer for the generation of a metastable hexagonal phase, but also plays an important role on the formation of ultra-thin sheet. The detailed formation mechanism has been discussed. The TEM and AFM tests show the thickness of ultra-thin h-WO3 nanosheet which is about 5 nm and the size is about 20–120 nm. Such size is favorable for photocatalytic reaction. Photodegradation RhB is carried out for investigating the photocatalytic activity of as-prepared sample. The ultra-thin h-WO3 sheet displays superior photocatalytic activity, more excellent photocatalytic activity than other shape samples due to its unique structure.
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Appendix
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Metadata
Title
Urea-assisted synthesis of ultra-thin hexagonal tungsten trioxide photocatalyst sheets
Authors
Yi Zheng
Gang Chen
Yaoguang Yu
Yidong Hu
Yujie Feng
Jingxue Sun
Publication date
01-12-2015
Publisher
Springer US
Published in
Journal of Materials Science / Issue 24/2015
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-9383-4

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