Effect of temperature on the morphology of nanobubbles at mica/water interface
Zhang Xue-Hua (张雪花)ab, Li Gang (李刚)a, Wu Zhi-Hua (吴志华)a, Zhang Xiao-Dong (张晓东)a, Hu Jun (胡钧)ac
a Nanobiology Laboratory, Bio-X Life Science Research Center, Shanghai Jiaotong University, Shanghai 200030, China; b Department of Macromolecular Science and The Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China; c Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract The great implication of nanobubbles at a solid/water interface has drawn wide attention of the scientific community and industries. However, the fundamental properties of nanobubbles remain unknown as yet. In this paper, the temperature effects on the morphology of nanobubbles at the mica/water interface are explored through the combination of AFM direct image with the temperature control. The results demonstrate that the apparent height of nanobubbles in AFM images is kept almost constant with the increase of temperature, whilst the lateral size of nanobubbles changes significantly. As the temperature increases from 28℃ to 42℃, the lateral size of nanobubbles increases, reaching a maximum at about 37℃, and then decreases at a higher temperature. The possible explanation for the size change of nanobubbles with temperature is suggested.
Received: 03 February 2005
Revised: 16 May 2005
Accepted manuscript online:
PACS:
68.08.De
(Liquid-solid interface structure: measurements and simulations)
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 20403010 and 10335070) and the Science and Technology Commission of Shanghai Municipality (Grant Nos 0352nm116 and 0452nm007).
Cite this article:
Zhang Xue-Hua (张雪花), Li Gang (李刚), Wu Zhi-Hua (吴志华), Zhang Xiao-Dong (张晓东), Hu Jun (胡钧) Effect of temperature on the morphology of nanobubbles at mica/water interface 2005 Chinese Physics 14 1774
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