Interfacial nanobubbles produced by long-time preserved cold water
Interfacial gaseous nanobubbles which have remarkable properties such as unexpectedly long lifetime and significant potential applications, are drawing more and more attention. However, the recent dispute about the contamination or gas inside the nanobubbles causes a large confusion due to the lack...
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| Published in | Chinese physics B Vol. 26; no. 10; pp. 395 - 403 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.10.2017
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| Subjects | |
| Online Access | Get full text |
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| Summary: | Interfacial gaseous nanobubbles which have remarkable properties such as unexpectedly long lifetime and significant potential applications, are drawing more and more attention. However, the recent dispute about the contamination or gas inside the nanobubbles causes a large confusion due to the lack of simple and clean method to produce gas nanobubbles. Here we report a convenient and clean method to effectively produce interfacial nanobubbles based on a pure water system. By adding the cold water cooled at 4 ℃ for more than 48 h onto highly oriented pyrolytic graphite （HOPG） surface, we find that the average density and total volume of nanobubbles are increased to a high level and mainly dominated by the concentrations of the dissolved gases in cold water. Our findings and methods are crucial and helpful for settling the newly arisen debates on gas nanobubbles. |
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| Bibliography: | nanobubbles, atomic force microscopy, gas saturation, solubility Interfacial gaseous nanobubbles which have remarkable properties such as unexpectedly long lifetime and significant potential applications, are drawing more and more attention. However, the recent dispute about the contamination or gas inside the nanobubbles causes a large confusion due to the lack of simple and clean method to produce gas nanobubbles. Here we report a convenient and clean method to effectively produce interfacial nanobubbles based on a pure water system. By adding the cold water cooled at 4 ℃ for more than 48 h onto highly oriented pyrolytic graphite （HOPG） surface, we find that the average density and total volume of nanobubbles are increased to a high level and mainly dominated by the concentrations of the dissolved gases in cold water. Our findings and methods are crucial and helpful for settling the newly arisen debates on gas nanobubbles. Li-Min Zhou1,4, Shuo Wang1,4, Jie Qiu1,3,4, Lei Wang1,2, Xing-Ya Wang1,2,4, Bin Li1,2, Li-Juan Zhang1,2, Jun Hu1,2（1 Key Laboratory oflnterfaciai Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China ; 2Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China ; 3 School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China ;4 University of Chinese Academy of Sciences, Beijing 100049, China） 11-5639/O4 |
| ISSN: | 1674-1056 2058-3834 |
| DOI: | 10.1088/1674-1056/26/10/106803 |