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Facile Fabrication of Well-polarized Bi2WO6 Nanosheets with Enhanced Visible-light Photocatalytic Activity

Abstract

A universal and facile strategy is proposed to fabricate polarized Bi2WO6 nanoparticles with the assist of a soluble organic-inorganic composite film. After the electric poling, there is no significant change in the crystal structure or morphology confirmed by XRD, SEM and TEM studies. By combining piezoresponse force microscope (PFM), photoinduced silver deposition and time-resolved photoluminescence (PL) testing, it can be revealed that the promoted separation and prolonged lifetime of photogenerated carriers are unambiguously caused by the ferroelectric polarization. The visible-light driven photocatalytic activity of polarized Bi2WO6 nanosheets was significantly improved by 2 times compared to pristine Bi2WO6. This electric poling strategy offers a new route for large-scale fabrication of various polarized ferroelectric nanoparticles, which has immense potential of practical applications in catalysis, optoelectronics and energy storage devices.

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Publication details

The article was received on 20 Sep 2018, accepted on 08 Nov 2018 and first published on 09 Nov 2018


Article type: Paper
DOI: 10.1039/C8CY01963K
Citation: Catal. Sci. Technol., 2018, Accepted Manuscript
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    Facile Fabrication of Well-polarized Bi2WO6 Nanosheets with Enhanced Visible-light Photocatalytic Activity

    G. Zhang, J. Cao, G. Huang, J. Li, D. Li, W. yao and T. Zeng, Catal. Sci. Technol., 2018, Accepted Manuscript , DOI: 10.1039/C8CY01963K

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