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Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves

Sonochemistry is the use of ultrasound to generate highly reactive radical species through the inertial collapse of a gas/vapour cavity and is a green alternative for hydrogen production, wastewater treatment, and chemical synthesis and modifications. Yet, current sonochemical reactors often are lim...

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Detalles Bibliográficos
Autores principales: Wong, Cherie C.Y., Raymond, Jason L., Usadi, Lillian N., Zong, Zhiyuan, Walton, Stephanie C., Sedgwick, Adam C., Kwan, James
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10474230/
https://www.ncbi.nlm.nih.gov/pubmed/37643498
http://dx.doi.org/10.1016/j.ultsonch.2023.106559
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author Wong, Cherie C.Y.
Raymond, Jason L.
Usadi, Lillian N.
Zong, Zhiyuan
Walton, Stephanie C.
Sedgwick, Adam C.
Kwan, James
author_facet Wong, Cherie C.Y.
Raymond, Jason L.
Usadi, Lillian N.
Zong, Zhiyuan
Walton, Stephanie C.
Sedgwick, Adam C.
Kwan, James
author_sort Wong, Cherie C.Y.
collection PubMed
description Sonochemistry is the use of ultrasound to generate highly reactive radical species through the inertial collapse of a gas/vapour cavity and is a green alternative for hydrogen production, wastewater treatment, and chemical synthesis and modifications. Yet, current sonochemical reactors often are limited by their design, resulting in low efficacy and yields with slow reaction kinetics. Here, we constructed a novel sonochemical reactor design that creates cylindrically converging ultrasound waves to create an intense localised region of high acoustic pressure amplitudes (15 MPa(PKPK)) capable of spontaneously nucleating cavitation. Using a novel dosimetry technique, we determined the effect of acoustic parameters on the yield of hydroxyl radicals (HO•), HO• production rate, and ultimately the sonochemical efficiency (SE) of our reactor. Our reactor design had a significantly higher HO• production rate and SE compared to other conventional reactors and across literature.
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spelling pubmed-104742302023-09-03 Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves Wong, Cherie C.Y. Raymond, Jason L. Usadi, Lillian N. Zong, Zhiyuan Walton, Stephanie C. Sedgwick, Adam C. Kwan, James Ultrason Sonochem Original Research Article Sonochemistry is the use of ultrasound to generate highly reactive radical species through the inertial collapse of a gas/vapour cavity and is a green alternative for hydrogen production, wastewater treatment, and chemical synthesis and modifications. Yet, current sonochemical reactors often are limited by their design, resulting in low efficacy and yields with slow reaction kinetics. Here, we constructed a novel sonochemical reactor design that creates cylindrically converging ultrasound waves to create an intense localised region of high acoustic pressure amplitudes (15 MPa(PKPK)) capable of spontaneously nucleating cavitation. Using a novel dosimetry technique, we determined the effect of acoustic parameters on the yield of hydroxyl radicals (HO•), HO• production rate, and ultimately the sonochemical efficiency (SE) of our reactor. Our reactor design had a significantly higher HO• production rate and SE compared to other conventional reactors and across literature. Elsevier 2023-08-18 /pmc/articles/PMC10474230/ /pubmed/37643498 http://dx.doi.org/10.1016/j.ultsonch.2023.106559 Text en © 2023 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original Research Article
Wong, Cherie C.Y.
Raymond, Jason L.
Usadi, Lillian N.
Zong, Zhiyuan
Walton, Stephanie C.
Sedgwick, Adam C.
Kwan, James
Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves
title Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves
title_full Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves
title_fullStr Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves
title_full_unstemmed Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves
title_short Enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves
title_sort enhancement of sonochemical production of hydroxyl radicals from pulsed cylindrically converging ultrasound waves
topic Original Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10474230/
https://www.ncbi.nlm.nih.gov/pubmed/37643498
http://dx.doi.org/10.1016/j.ultsonch.2023.106559
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