Coarsening behavior of bulk nanobubbles in water

Abstract In recent years, minuscule gas bubbles called bulk nanobubbles (BNBs) have drawn increasing attention due to their unique properties and broad applicability in various technological fields, such as biomedical engineering, water treatment, and nanomaterials. However, questions remain regardi...

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Autores principales:	Jeong Il Lee, Han Sol Huh, Joong Yull Park, Jung-Geun Han, Jong-Min Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/38045a7c85824268bb65bb67551d67e9
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spelling	oai:doaj.org-article:38045a7c85824268bb65bb67551d67e92021-12-02T17:37:29ZCoarsening behavior of bulk nanobubbles in water10.1038/s41598-021-98783-22045-2322https://doaj.org/article/38045a7c85824268bb65bb67551d67e92021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98783-2https://doaj.org/toc/2045-2322Abstract In recent years, minuscule gas bubbles called bulk nanobubbles (BNBs) have drawn increasing attention due to their unique properties and broad applicability in various technological fields, such as biomedical engineering, water treatment, and nanomaterials. However, questions remain regarding the stability and behavior of BNBs. In the present work, BNBs were generated in water using a gas–liquid mixing method. NB analysis was performed using a nanoparticle tracking analysis (NTA) method to investigate the coarsening behavior of BNBs in water over time. The diameters of the BNBs increased, and their cubic radii increased linearly (r3 ~ t) over time. While the concentration of BNBs decreased, the total volume of BNBs remained the same. The size distribution of the BNBs broadened, and the concentration of larger BNBs increased over time. These results indicate that relatively small BNBs disappeared due to dissolution and larger BNBs grew through mass transfer between BNBs instead of coalescence. In other words, BNBs underwent Ostwald ripening: gas molecules from smaller BNBs diffused through the continuous phase to be absorbed into larger BNBs.Jeong Il LeeHan Sol HuhJoong Yull ParkJung-Geun HanJong-Min KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jeong Il Lee Han Sol Huh Joong Yull Park Jung-Geun Han Jong-Min Kim Coarsening behavior of bulk nanobubbles in water
description	Abstract In recent years, minuscule gas bubbles called bulk nanobubbles (BNBs) have drawn increasing attention due to their unique properties and broad applicability in various technological fields, such as biomedical engineering, water treatment, and nanomaterials. However, questions remain regarding the stability and behavior of BNBs. In the present work, BNBs were generated in water using a gas–liquid mixing method. NB analysis was performed using a nanoparticle tracking analysis (NTA) method to investigate the coarsening behavior of BNBs in water over time. The diameters of the BNBs increased, and their cubic radii increased linearly (r3 ~ t) over time. While the concentration of BNBs decreased, the total volume of BNBs remained the same. The size distribution of the BNBs broadened, and the concentration of larger BNBs increased over time. These results indicate that relatively small BNBs disappeared due to dissolution and larger BNBs grew through mass transfer between BNBs instead of coalescence. In other words, BNBs underwent Ostwald ripening: gas molecules from smaller BNBs diffused through the continuous phase to be absorbed into larger BNBs.
format	article
author	Jeong Il Lee Han Sol Huh Joong Yull Park Jung-Geun Han Jong-Min Kim
author_facet	Jeong Il Lee Han Sol Huh Joong Yull Park Jung-Geun Han Jong-Min Kim
author_sort	Jeong Il Lee
title	Coarsening behavior of bulk nanobubbles in water
title_short	Coarsening behavior of bulk nanobubbles in water
title_full	Coarsening behavior of bulk nanobubbles in water
title_fullStr	Coarsening behavior of bulk nanobubbles in water
title_full_unstemmed	Coarsening behavior of bulk nanobubbles in water
title_sort	coarsening behavior of bulk nanobubbles in water
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/38045a7c85824268bb65bb67551d67e9
work_keys_str_mv	AT jeongillee coarseningbehaviorofbulknanobubblesinwater AT hansolhuh coarseningbehaviorofbulknanobubblesinwater AT joongyullpark coarseningbehaviorofbulknanobubblesinwater AT junggeunhan coarseningbehaviorofbulknanobubblesinwater AT jongminkim coarseningbehaviorofbulknanobubblesinwater
_version_	1718379876293017600

Coarsening behavior of bulk nanobubbles in water

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