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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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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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. |
format | Online Article Text |
id | pubmed-10474230 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
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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