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Issue 17, 2020
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Formation mechanism of porous rose-like WO3 and its photoresponse and stability study

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Abstract

WO3 materials are widely used in photocatalysis and electrocatalysis. In this work, sodium dodecyl benzene sulfonate (SDBS) was used to control the growth of H2WO4 during a chemical bath deposition fabrication process. The as-prepared H2WO4 material showed a rose-like morphology and after annealing the obtained WO3 sample was porous with oxygen defects. XRD, SEM, TEM, XPS and some other methods were used to characterize the samples. A possible growth mechanism was given depending on the characterization results. The addition of SDBS resulted in simultaneous growth of numerous H2WO4 nuclei, which caused a uniform distribution. Compared with normal WO3, the as-fabricated porous rose-like WO3 showed higher stability to photocorrosion and a narrower band gap.

Graphical abstract: Formation mechanism of porous rose-like WO3 and its photoresponse and stability study

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Supplementary files

Article information


Submitted
07 Feb 2020
Accepted
12 Mar 2020
First published
19 Mar 2020

CrystEngComm, 2020,22, 2945-2952
Article type
Paper

Formation mechanism of porous rose-like WO3 and its photoresponse and stability study

J. Yao, M. Zhang, H. Yin, M. Arif and X. Liu, CrystEngComm, 2020, 22, 2945
DOI: 10.1039/D0CE00185F

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