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Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field

Using a nanosecond pulsed electric field to induce orientation and arrangement of insulating flake particles is a novel efficient strategy, but the specific mechanism remains unclear. In this study, the dielectrophoretic motion of boron nitride nanosheets (BNNSs) in ultrapure water under a nanosecon...

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Autores principales: Mi, Yan, Ge, Xin, Dai, Jinyan, Chen, Yong, Zhu, Yakui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8000861/
https://www.ncbi.nlm.nih.gov/pubmed/33803370
http://dx.doi.org/10.3390/nano11030682
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author Mi, Yan
Ge, Xin
Dai, Jinyan
Chen, Yong
Zhu, Yakui
author_facet Mi, Yan
Ge, Xin
Dai, Jinyan
Chen, Yong
Zhu, Yakui
author_sort Mi, Yan
collection PubMed
description Using a nanosecond pulsed electric field to induce orientation and arrangement of insulating flake particles is a novel efficient strategy, but the specific mechanism remains unclear. In this study, the dielectrophoretic motion of boron nitride nanosheets (BNNSs) in ultrapure water under a nanosecond pulsed electric field is simulated for the first time. First, the simulation theory is proposed. When the relaxation polarization time of the dielectric is much shorter than the pulse voltage width, the pulse voltage high level can be considered a short-term DC voltage. On this basis, the Arbitrary Lagrangian–Euler (ALE) method is used in the model, considering the mutual ultrapure water–BNNS particles-nanosecond pulsed electric field dielectrophoretic interaction, to study the influence of different BNNSs self-angle α and relative angle β on local orientation and global arrangement. The particles are moved by the dielectrophoretic force during the pulse voltage high level and move with the ultrapure water flow at the zero level, without their movement direction changing during this period, so the orientation angle and distance changes show step-like and wave-like curves, respectively. The model explains the basic mechanism of dielectrophoretic motion of BNNSs under a pulsed electric field and summarizes the motion law of BNNSs, providing a reference for subsequent research.
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spelling pubmed-80008612021-03-28 Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field Mi, Yan Ge, Xin Dai, Jinyan Chen, Yong Zhu, Yakui Nanomaterials (Basel) Article Using a nanosecond pulsed electric field to induce orientation and arrangement of insulating flake particles is a novel efficient strategy, but the specific mechanism remains unclear. In this study, the dielectrophoretic motion of boron nitride nanosheets (BNNSs) in ultrapure water under a nanosecond pulsed electric field is simulated for the first time. First, the simulation theory is proposed. When the relaxation polarization time of the dielectric is much shorter than the pulse voltage width, the pulse voltage high level can be considered a short-term DC voltage. On this basis, the Arbitrary Lagrangian–Euler (ALE) method is used in the model, considering the mutual ultrapure water–BNNS particles-nanosecond pulsed electric field dielectrophoretic interaction, to study the influence of different BNNSs self-angle α and relative angle β on local orientation and global arrangement. The particles are moved by the dielectrophoretic force during the pulse voltage high level and move with the ultrapure water flow at the zero level, without their movement direction changing during this period, so the orientation angle and distance changes show step-like and wave-like curves, respectively. The model explains the basic mechanism of dielectrophoretic motion of BNNSs under a pulsed electric field and summarizes the motion law of BNNSs, providing a reference for subsequent research. MDPI 2021-03-09 /pmc/articles/PMC8000861/ /pubmed/33803370 http://dx.doi.org/10.3390/nano11030682 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Mi, Yan
Ge, Xin
Dai, Jinyan
Chen, Yong
Zhu, Yakui
Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field
title Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field
title_full Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field
title_fullStr Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field
title_full_unstemmed Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field
title_short Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field
title_sort simulation of bnnss dielectrophoretic motion under a nanosecond pulsed electric field
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8000861/
https://www.ncbi.nlm.nih.gov/pubmed/33803370
http://dx.doi.org/10.3390/nano11030682
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