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Updated: Aug 27, 2025

In Situ Characterization of Boehmite Particles in Water Using Liquid SEM
Published on: September 27, 2017
High resolution imaging of ultrafine bubbles in water by Atmospheric SEM-CL
Wataru Inami1, Naoto Hara2, Yoshimasa Kawata1
1Shizuoka University, Graduate School of Science and Technology, Hamamatsu 4328561, Japan; Shizuoka University, Research Institute of Electronics, Hamamatsu 4328011, Japan.
Abstract:
Various analytical methods such as high-resolution observation of ultrafine bubbles in water are required to clarify the mechanisms and interrelationships of various effects brought about by ultrafine bubbles. In this study, we used atmospheric scanning electron microscopy-cathodoluminescence (ASEM-CL) method for observing ultrafine bubbles in water. ASEM can observe samples in water, and the fine electron beam provides high spatial resolution. Furthermore, the gas in the bubble can be estimated from the CL emission spectrum. We have measured characteristics such as bubble size and particle number density. Also, the CL spectra has shown that the ultrafine bubbles contained nitrogen.
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