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Investigation on the temperature difference method for producing nanobubbles and their physical properties.

Authors
  • Guan, Min
  • Guo, Wen
  • Gao, Lianhua
  • Tang, Yuzhao
  • Hu, Jun
  • Dong, Yaming
Type
Published Article
Journal
ChemPhysChem
Publisher
Wiley (John Wiley & Sons)
Publication Date
Jun 04, 2012
Volume
13
Issue
8
Pages
2115–2118
Identifiers
DOI: 10.1002/cphc.201100912
PMID: 22505224
Source
Medline
License
Unknown

Abstract

In recent years, the possibility of nanobubbles at the solid-liquid interface has drawn wide attention in the scientific community and industry. Thus the search for evidences for the existence of nanobubbles became a scientific hotspot. To produce interfacial nanobubbles, a systematic experiment, called the temperature difference method, is carried out by replacing low temperature water (LTW) with high temperature water (HTW) at the highly-oriented pyrolytic graphite (HOPG)-water interface. When LTW (4 °C) is mixed with HTW (25-40 °C), nanobubbles are observed by atomic force microscopy (AFM), and their size, density and total volume per square micrometer are measured. Furthermore, pancake-like gas layers and the coexistence of nanobubbles on top of the pancake layers are also observed.

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