ADSORPTION OF NANO-PARTICLES ON BUBB

时间:2023-04-29 14:04:45 数理化学论文 我要投稿
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ADSORPTION OF NANO-PARTICLES ON BUBBLE SURFACE IN NANO-PARTICLE SUSPENSION

The adsorption of nano-particles on bubble surface is discussed for saturated boiling on thin wire of nano-particle suspensions. Owing to the decrease of surface tension for suspensions, the nano-particles tend to adsorb on the bubble surface to decrease the Gibbs free energy for stability, and meanwhile the velocity of nano-particles would be smaller than that of bubble growth. The long-range van der Waals force existing between "water particles" and nano-particles is considered the attractive force between the nano-particles and the bubble surface. Thus, the nano-particles would attach on the bubble surface if the particle-surface distance is smaller than its critical value. The distribution of nano-particles on the bubble surface and in the adjacent region is also investigated.

作 者: Buxuan Wang Chunhui Li Xiaofeng Peng   作者单位: Laboratory of Phase-Change and Interfacial Transport Phenomena, Department of Thermal Engineering, Tsinghua University, Beijing 100084, P. R. China  刊 名: 中国颗粒学报(英文版)  ISTIC SCI 英文刊名: CHINESE PARTICUOLOGY  年,卷(期): 2005 3(4)  分类号: O6  关键词: nano-particle suspension   attachment   critical distance  

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