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Transmission electron microscopic observations of nanobubbles and their capture of impurities in wastewater

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Title: Transmission electron microscopic observations of nanobubbles and their capture of impurities in wastewater
Authors: Uchida, Tsutomu Browse this author
Oshita, Seiichi Browse this author
Ohmori, Masayuki Browse this author
Tsuno, Takuo Browse this author
Soejima, Koichi Browse this author
Shinozaki, Satoshi Browse this author
Take, Yasuhisa Browse this author
Mitsuda, Koichi Browse this author
Issue Date: 5-Apr-2011
Publisher: Springer
Journal Title: Nanoscale Research Letters
Volume: 6
Issue: 1
Start Page: 295
Publisher DOI: 10.1186/1556-276X-6-295
Abstract: Unique properties of micro- and nanobubbles (MNBs), such as a high adsorption of impurities on their surface, are difficult to verify because MNBs are too small to observe directly. We thus used a transmission electron microscope (TEM) with the freeze-fractured replica method to observe oxygen (O2) MNBs in solutions. MNBs in pure water and in 1% NaCl solutions were spherical or oval. Their size distribution estimated from TEM images close to that of the original solution is measured by light-scattered methods. When we applied this technique to the observation of O2 MNBs formed in the wastewater of a sewage plant, we found the characteristic features of spherical MNBs that adsorbed surrounding impurity particles on their surface.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 内田 努

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