National Institute of Advanced Industrial Science and Technology (AIST), Moriyama, Nagoya 463-8560, Japan.
National Institute of Advanced Industrial Science and Technology (AIST), Moriyama, Nagoya 463-8560, Japan.
Ultrason Sonochem. 2021 Aug;76:105646. doi: 10.1016/j.ultsonch.2021.105646. Epub 2021 Jun 20.
The present study mainly examined the effects of the volumetric concentration of nanobubbles (ultrafine bubbles) on the intensity of sonoluminescence (SL). The addition of nanobubbles at high acoustic amplitude enhanced the SL intensity for various bubble concentrations in comparison with that in pure water. This probably means that the resulting high amplitude is over the Blake threshold, and accordingly nanobubbles expand to some extent, leading to higher SL intensity. Therefore, nanobubbles have the potential to provide nucleation sites for sonochemistry. The influence of bubble size on the intensity of SL was also evaluated.
本研究主要考察了纳米气泡（超细微气泡）的体积浓度对声致发光（SL）强度的影响。与纯水中的情况相比，在高声强下添加纳米气泡会增强各种气泡浓度下的 SL 强度。这可能意味着所产生的高声强超过了 Blake 阈值，并且相应地纳米气泡会在一定程度上膨胀，从而导致更高的 SL 强度。因此，纳米气泡有可能为声化学提供成核位点。还评估了气泡大小对 SL 强度的影响。
