Nano Energy, том 90, страницы 106586

Ultrasound and water flow driven piezophototronic effect in self-polarized flexible α-Fe2O3 containing PVDF nanofibers film for enhanced catalytic oxidation

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Academy of Sciences ČR, Institute of Physics of Materials, Žižkova 22, 616 62 Brno, Czech Republic
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Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 616 00 Brno, Czech Republic
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Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 616 00 Brno, Czech Republic.
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Central European Institute of Technology BUT, Purkyňova 123, 612 00 Brno, Czech Republic
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Department of Ceramics and Polymers, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic
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School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi’an, 710021, PR China
Тип публикацииJournal Article
Дата публикации2021-12-01
Журнал: Nano Energy
Квартиль SCImago
Q1
Квартиль WOS
Q1
Impact factor17.6
ISSN22112855
General Materials Science
Electrical and Electronic Engineering
Renewable Energy, Sustainability and the Environment
Краткое описание
A new piezophotocatalytically active membrane based on polyvinylidene fluoride (PVDF) nanofibers with α-Fe 2 O 3 nanoparticles incorporated into them has been synthesized by electrospinning. The composition, morphology and structure of α-Fe 2 O 3 containing PVDF nanofibers mats were investigated by SEM, XRD, Raman, FTIR, XPS and DSC. Studies have shown that the inclusion of α-Fe 2 O 3 nanoparticles promotes additional crystallization and self-polarization of PVDF into an electroactive β-phase. With the help of XPS, the mechanism of interfacial ion-dipole electrostatic interaction, leading to self-polishing and crystallization of the structure, is shown. Using measurements of VB XPS, UPS and the frequency dependence of the dielectric constant, the role of polarization effects on the formation of long-lived metastable energy states in the electronic structure of PVDF near the Fermi level is shown. Piezocatalytic and piezophotocatalytic activity was assessed by the decomposition of Methylene Blue (MB) under the influence of ultrasound and UV-Vis radiation. The efficiency of piezocatalysis and piezophotocatalysis was 60.4% and 99.5%, respectively. With the help of experiments on the capture of active redox forms, it was found that ∙OH radicals are the main component of the MB degradation. Two different mechanisms of generating ∙OH radicals for piezocatalysis and piezophotocatalysis have been reasonably proposed. The stability of the catalyst was shown after five successive cycles of piezophotocatalysis. • The interfacial interaction α-Fe 2 O 3 and dipoles in PVDF provide self-poling and crystallization of α to β phase. • Piezophototronic effect in α-Fe 2 O 3 -PVDF greatly improves the catalytic properties. • The catalytic activity of α-Fe 2 O 3 -PVDF films can be enhanced by ultrasound and flowing-water • The output voltage piezoresponse of α-Fe 2 O 3 -PVDF based PENG are influenced by bending and ultrasound stress. • A higher piezoelectric potential is more favorable for photocatalytic activity.

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ГОСТ |
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Orudzhev F. et al. Ultrasound and water flow driven piezophototronic effect in self-polarized flexible α-Fe2O3 containing PVDF nanofibers film for enhanced catalytic oxidation // Nano Energy. 2021. Vol. 90. p. 106586.
ГОСТ со всеми авторами (до 50) Скопировать
Orudzhev F., Ramazanov S., Sobola D., Kaspar P., Trčka T., Castkova K., Kaštyl J., Zvereva I. A., Wang C., Selimov D., Gulakhmedov R., Abdurakhmanov M., Shuaibov A., Kadiev M. Ultrasound and water flow driven piezophototronic effect in self-polarized flexible α-Fe2O3 containing PVDF nanofibers film for enhanced catalytic oxidation // Nano Energy. 2021. Vol. 90. p. 106586.
RIS |
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TY - JOUR
DO - 10.1016/j.nanoen.2021.106586
UR - https://doi.org/10.1016/j.nanoen.2021.106586
TI - Ultrasound and water flow driven piezophototronic effect in self-polarized flexible α-Fe2O3 containing PVDF nanofibers film for enhanced catalytic oxidation
T2 - Nano Energy
AU - Orudzhev, Farid
AU - Ramazanov, Shikhgasan
AU - Sobola, Dinara
AU - Kaspar, Pavel
AU - Trčka, Tomáš
AU - Castkova, Klara
AU - Kaštyl, Jaroslav
AU - Zvereva, Irina A.
AU - Wang, Chuanyi
AU - Selimov, Daud
AU - Gulakhmedov, Rashid
AU - Abdurakhmanov, Magomed
AU - Shuaibov, Abdulatip
AU - Kadiev, Makhmud
PY - 2021
DA - 2021/12/01 00:00:00
PB - Elsevier
SP - 106586
VL - 90
SN - 2211-2855
ER -
BibTex |
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@article{2021_Orudzhev
author = {Farid Orudzhev and Shikhgasan Ramazanov and Dinara Sobola and Pavel Kaspar and Tomáš Trčka and Klara Castkova and Jaroslav Kaštyl and Irina A. Zvereva and Chuanyi Wang and Daud Selimov and Rashid Gulakhmedov and Magomed Abdurakhmanov and Abdulatip Shuaibov and Makhmud Kadiev},
title = {Ultrasound and water flow driven piezophototronic effect in self-polarized flexible α-Fe2O3 containing PVDF nanofibers film for enhanced catalytic oxidation},
journal = {Nano Energy},
year = {2021},
volume = {90},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016/j.nanoen.2021.106586},
pages = {106586},
doi = {10.1016/j.nanoen.2021.106586}
}
MLA
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Orudzhev, Farid, et al. “Ultrasound and Water Flow Driven Piezophototronic Effect in Self-Polarized Flexible α-Fe2O3 Containing PVDF Nanofibers Film for Enhanced Catalytic Oxidation.” Nano Energy, vol. 90, Dec. 2021, p. 106586. Crossref, https://doi.org/10.1016/j.nanoen.2021.106586.
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