Variations in the size distribution of bulk nanobubbles in response to static pressure increases
Variations in the size distribution of bulk nanobubbles in response to static pressure increases
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DOI：
10.35848/1347-4065/ab78e5
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发表时间：
2020-07-01
影响因子：
1.5
通讯作者：
Kanematsu, Wataru
中科院分区：
文献类型：
--
作者：
Tuziuti, Toru;Yasui, Kyuichi;Kanematsu, Wataru
本研究探讨了增加静压对纳米气泡（超细气泡）尺寸分布的影响。纳米气泡的总体积浓度随着静压的增加而减小，而平均尺寸保持相对恒定。这一结果表明，许多检测到的物体是气态纳米气泡。本文基于声致发光强度的测量来讨论这些纳米气泡响应于声处理的行为。在极高的声振幅下，与纯水相比，在纳米气泡存在下观察到的强度更大。因此，纳米气泡具有为声化学提供成核位点的潜力。(C)2020日本应用物理学会
The present study examined the effects of increasing static pressure on the size distribution of nanobubbles (ultrafine bubbles). The total volume concentration of the nanobubbles decreased with increasing the static pressure while the average size remained relatively constant. This result indicates that many of the detected objects were gaseous nanobubbles. The behavior of these nanobubbles in response to sonication is discussed herein based on measurements of sonoluminescence intensity. At extremely high acoustic amplitudes, the observed intensity was greater in the presence of nanobubbles as compared to pure water. Accordingly, nanobubbles have the potential to provide nucleation sites for sonochemistry. (C) 2020 The Japan Society of Applied Physics