Long-Term Stability of Nanobubbles Generated via Pressure Oscillation-Hydrodynamic Cavitation: A Rapid Assessment by UV-Vis Spectrophotometry.

Lei Huang, Jiaqi Dong, Ming Chen, Lei Li, Ruichao Zhang

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Article in Nanomaterials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Lei HuangCollege of Intelligent Manufacturing and Control Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China.

Jiaqi DongPipeChina Engineering Technology Innovation Co., Ltd., Tianjin 510289, China.

Ming ChenCollege of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.

Lei LiCollege of Intelligent Manufacturing and Control Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China.

Ruichao ZhangCollege of Intelligent Manufacturing and Control Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China.ORCID 0000-0001-7802-086X

Funding

Dongying Natural Science Foundation No. 2023ZR029Open Fund of Shengli Oilfield Key Laboratory No.30200018-24-ZC0613-0144

6 · The paper itself

Abstract

The long-term stability of bulk nanobubbles is crucial for their functional applications; however, understanding the evolution of their size distribution remains a significant challenge. While conventional characterization methods, such as Dynamic Light Scattering and Nanoparticle Tracking Analysis, provide size information, they are often sample-intensive and expensive, making them ill-suited for high-throughput or long-term dynamic monitoring of size distribution polydispersity. This research validated UV-Vis spectrophotometry as a simple, powerful tool for tracking these dynamic changes. Air nanobubbles generated via pressure oscillation-hydraulic cavitation were systematically monitored over 30 days using correlative DLS, NTA, and UV-Vis spectroscopy. A distinct two-stage evolution was identified: an initial "purification" phase marked by the dissolution of unstable bubbles, followed by a long-term "maturation" phase governed by Ostwald ripening. The Ångström exponent (

Indexed as

air nanobubbleÅngström exponentcharacterization methodslong-term stabilityspectrophotometry

Identifiers

PMID41222326

DOI10.3390/nano15211613

PMCPMC12608798

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